1 <?xml version="1.0" encoding="utf-8"?>
   2 
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   5  DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   7  This code is free software; you can redistribute it and/or modify it
   8  under the terms of the GNU General Public License version 2 only, as
   9  published by the Free Software Foundation.
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  11  This code is distributed in the hope that it will be useful, but WITHOUT
  12  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  version 2 for more details (a copy is included in the LICENSE file that
  15  accompanied this code).
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  17  You should have received a copy of the GNU General Public License version
  18  2 along with this work; if not, write to the Free Software Foundation,
  19  Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20 
  21  Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  or visit www.oracle.com if you need additional information or have any
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  26 
  27 <Metadata>
  28 
  29   <Event name="ThreadStart" category="Java Application" label="Java Thread Start" thread="true" startTime="false" stackTrace="true">
  30     <Field type="Thread" name="thread" label="New Java Thread" />
  31     <Field type="Thread" name="parentThread" label="Parent Java Thread" />
  32   </Event>
  33 
  34   <Event name="ThreadEnd" category="Java Application" label="Java Thread End" thread="true" startTime="false">
  35     <Field type="Thread" name="thread" label="Java Thread" />
  36   </Event>
  37 
  38   <Event name="ThreadPark" category="Java Application" label="Java Thread Park" thread="true" stackTrace="true">
  39     <Field type="Class" name="parkedClass" label="Class Parked On" />
  40     <Field type="long" contentType="nanos" name="timeout" label="Park Timeout" />
  41     <Field type="long" contentType="epochmillis" name="until" label="Park Until" />
  42     <Field type="ulong" contentType="address" name="address" label="Address of Object Parked" relation="JavaMonitorAddress" />
  43   </Event>
  44 
  45   <Event name="JavaMonitorEnter" category="Java Application" label="Java Monitor Blocked" thread="true" stackTrace="true">
  46     <Field type="Class" name="monitorClass" label="Monitor Class" />
  47     <Field type="Thread" name="previousOwner" label="Previous Monitor Owner" />
  48     <Field type="ulong" contentType="address" name="address" label="Monitor Address" relation="JavaMonitorAddress" />
  49   </Event>
  50 
  51   <Event name="JavaMonitorWait" category="Java Application" label="Java Monitor Wait" description="Waiting on a Java monitor" thread="true" stackTrace="true">
  52     <Field type="Class" name="monitorClass" label="Monitor Class" description="Class of object waited on" />
  53     <Field type="Thread" name="notifier" label="Notifier Thread" description="Notifying Thread" />
  54     <Field type="long" contentType="millis" name="timeout" label="Timeout" description="Maximum wait time" />
  55     <Field type="boolean" name="timedOut" label="Timed Out" description="Wait has been timed out" />
  56     <Field type="ulong" contentType="address" name="address" label="Monitor Address" description="Address of object waited on" relation="JavaMonitorAddress" />
  57   </Event>
  58 
  59   <Event name="JavaMonitorInflate" category="Java Application" label="Java Monitor Inflated" thread="true" stackTrace="true">
  60     <Field type="Class" name="monitorClass" label="Monitor Class" />
  61     <Field type="ulong" contentType="address" name="address" label="Monitor Address" relation="JavaMonitorAddress" />
  62     <Field type="InflateCause" name="cause" label="Monitor Inflation Cause" description="Cause of inflation" />
  63   </Event>
  64 
  65   <Event name="SyncOnValueBasedClass" category="Java Virtual Machine, Diagnostics" label="Value Based Class Synchronization" thread="true" stackTrace="true" startTime="false" experimental="true">
  66     <Field type="Class" name="valueBasedClass" label="Value Based Class" />
  67   </Event>
  68 
  69   <Event name="ContinuationFreeze" experimental="true" category="Java Application" label="Continuation Yield" description="Invocation of Continuation.yield()"
  70     thread="true" stackTrace="true">
  71     <Field type="Thread" name="carrierThread" label="Carrier Thread" description="Thread enlisted as a carrier" />
  72     <Field type="Class" name="contClass" label="Continuation class" description="Class of the continuation" />
  73     <Field type="ushort" name="numFrames" label="Number of frames" />
  74     <Field type="ushort" name="numIFrames" label="Number of interpreted frames" />
  75     <Field type="ushort" name="numRefs" label="Number of references" />
  76     <Field type="ushort" name="size" label="Stack size in bytes" />
  77   </Event>
  78 
  79   <Event name="ContinuationThaw" experimental="true" category="Java Application" label="Continuation Continue" description="Invocation of Continuation.run() on a started continuation"
  80     thread="true" stackTrace="true">
  81     <Field type="Thread" name="carrierThread" label="Carrier Thread" description="Thread enlisted as a carrier" />
  82     <Field type="Class" name="contClass" label="Continuation class" description="Class of the continuation" />
  83     <Field type="ushort" name="numFrames" label="Number of frames" />
  84     <Field type="ushort" name="numIFrames" label="Number of interpreted frames" />
  85     <Field type="ushort" name="numRefs" label="Number of references" />
  86     <Field type="ushort" name="size" label="Stack size in bytes" />
  87   </Event>
  88 
  89   <Event name="ContinuationIterateOops" experimental="true" category="Java Virtual Machine" label="Continuation Iterate OOPs" thread="true" stackTrace="false" startTime="false">
  90     <Field type="ulong" name="id" label="Continuation ID" />
  91     <Field type="boolean" name="safepoint" label="Safepoint" />
  92     <Field type="ushort" name="numFrames" label="Frames" />
  93     <Field type="ushort" name="numOops" label="Oops" />
  94   </Event>
  95 
  96   <Event name="ContinuationFreezeYoung" experimental="true" category="Java Virtual Machine" label="Continuation Freeze Young" thread="true" stackTrace="false" startTime="false">
  97     <Field type="ulong" name="id" label="Continuation ID" />
  98     <Field type="uint" name="size" label="Size" />
  99     <Field type="boolean" name="allocate" label="Allocated new" />
 100   </Event>
 101 
 102   <Event name="ContinuationFreezeOld" experimental="true" category="Java Virtual Machine" label="Continuation Freeze Old" thread="true" stackTrace="false" startTime="false">
 103     <Field type="ulong" name="id" label="Continuation ID" />
 104   </Event>
 105 
 106   <Event name="ContinuationThawYoung" experimental="true" category="Java Virtual Machine" label="Continuation Thaw Young" thread="true" stackTrace="false" startTime="false">
 107     <Field type="ulong" name="id" label="Continuation ID" />
 108     <Field type="boolean" name="full" label="Full" />
 109     <Field type="uint" name="size" label="Size" />
 110   </Event>
 111 
 112   <Event name="ContinuationThawOld" experimental="true" category="Java Virtual Machine" label="Continuation Thaw Old" thread="true" stackTrace="false" startTime="false">
 113     <Field type="ulong" name="id" label="Continuation ID" />
 114   </Event>
 115 
 116   <Event name="ReservedStackActivation" category="Java Virtual Machine, Runtime" label="Reserved Stack Activation"
 117     description="Activation of Reserved Stack Area caused by stack overflow with ReservedStackAccess annotated method in call stack" thread="true" stackTrace="true"
 118     startTime="false">
 119     <Field type="Method" name="method" label="Java Method" />
 120   </Event>
 121 
 122   <Event name="ClassLoad" category="Java Virtual Machine, Class Loading" label="Class Load" thread="true" stackTrace="true">
 123     <Field type="Class" name="loadedClass" label="Loaded Class" />
 124     <Field type="ClassLoader" name="definingClassLoader" label="Defining Class Loader" />
 125     <Field type="ClassLoader" name="initiatingClassLoader" label="Initiating Class Loader" />
 126   </Event>
 127 
 128   <Event name="ClassDefine" category="Java Virtual Machine, Class Loading" label="Class Define" thread="true" stackTrace="true" startTime="false">
 129     <Field type="Class" name="definedClass" label="Defined Class" />
 130     <Field type="ClassLoader" name="definingClassLoader" label="Defining Class Loader" />
 131   </Event>
 132 
 133   <Event name="ClassRedefinition" category="Java Virtual Machine, Class Loading" label="Class Redefinition" thread="false" stackTrace="false" startTime="false">
 134     <Field type="Class" name="redefinedClass" label="Redefined Class" />
 135     <Field type="int" name="classModificationCount" label="Class Modification Count" description="The number of times the class has changed"/>
 136     <Field type="ulong" name="redefinitionId" label="Class Redefinition Id" relation="ClassRedefinitionId"/>
 137   </Event>
 138 
 139   <Event name="RedefineClasses" category="Java Virtual Machine, Class Loading" label="Redefine Classes" thread="true" stackTrace="true">
 140     <Field type="int" name="classCount" label="Class Count" />
 141     <Field type="ulong" name="redefinitionId" label="Class Redefinition Id" relation="ClassRedefinitionId" />
 142   </Event>
 143 
 144   <Event name="RetransformClasses" category="Java Virtual Machine, Class Loading" label="Retransform Classes" thread="true" stackTrace="true">
 145     <Field type="int" name="classCount" label="Class Count"/>
 146     <Field type="ulong" name="redefinitionId" label="Class Redefinition Id" relation="ClassRedefinitionId" />
 147   </Event>
 148 
 149   <Event name="ClassUnload" category="Java Virtual Machine, Class Loading" label="Class Unload" thread="true" startTime="false">
 150     <Field type="Class" name="unloadedClass" label="Unloaded Class" />
 151     <Field type="ClassLoader" name="definingClassLoader" label="Defining Class Loader" />
 152   </Event>
 153 
 154   <Event name="IntFlagChanged" category="Java Virtual Machine, Flag" label="Int Flag Changed" startTime="false">
 155     <Field type="string" name="name" label="Name" />
 156     <Field type="int" name="oldValue" label="Old Value" />
 157     <Field type="int" name="newValue" label="New Value" />
 158     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 159   </Event>
 160 
 161   <Event name="UnsignedIntFlagChanged" category="Java Virtual Machine, Flag" label="Unsigned Int Flag Changed" startTime="false">
 162     <Field type="string" name="name" label="Name" />
 163     <Field type="uint" name="oldValue" label="Old Value" />
 164     <Field type="uint" name="newValue" label="New Value" />
 165     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 166   </Event>
 167 
 168   <Event name="LongFlagChanged" category="Java Virtual Machine, Flag" label="Long Flag Changed" startTime="false">
 169     <Field type="string" name="name" label="Name" />
 170     <Field type="long" name="oldValue" label="Old Value" />
 171     <Field type="long" name="newValue" label="New Value" />
 172     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 173   </Event>
 174 
 175   <Event name="UnsignedLongFlagChanged" category="Java Virtual Machine, Flag" label="Unsigned Long Flag Changed" startTime="false">
 176     <Field type="string" name="name" label="Name" />
 177     <Field type="ulong" name="oldValue" label="Old Value" />
 178     <Field type="ulong" name="newValue" label="New Value" />
 179     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 180   </Event>
 181 
 182   <Event name="DoubleFlagChanged" category="Java Virtual Machine, Flag" label="Double Flag Changed" startTime="false">
 183     <Field type="string" name="name" label="Name" />
 184     <Field type="double" name="oldValue" label="Old Value" />
 185     <Field type="double" name="newValue" label="New Value" />
 186     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 187   </Event>
 188 
 189   <Event name="BooleanFlagChanged" category="Java Virtual Machine, Flag" label="Boolean Flag Changed" startTime="false">
 190     <Field type="string" name="name" label="Name" />
 191     <Field type="boolean" name="oldValue" label="Old Value" />
 192     <Field type="boolean" name="newValue" label="New Value" />
 193     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 194   </Event>
 195 
 196   <Event name="StringFlagChanged" category="Java Virtual Machine, Flag" label="String Flag Changed" startTime="false">
 197     <Field type="string" name="name" label="Name" />
 198     <Field type="string" name="oldValue" label="Old Value" />
 199     <Field type="string" name="newValue" label="New Value" />
 200     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 201   </Event>
 202 
 203   <Type name="VirtualSpace">
 204     <Field type="ulong" contentType="address" name="start" label="Start Address" description="Start address of the virtual space" />
 205     <Field type="ulong" contentType="address" name="committedEnd" label="Committed End Address" description="End address of the committed memory for the virtual space" />
 206     <Field type="ulong" contentType="bytes" name="committedSize" label="Committed Size" description="Size of the committed memory for the virtual space" />
 207     <Field type="ulong" contentType="address" name="reservedEnd" label="Reserved End Address" description="End address of the reserved memory for the virtual space" />
 208     <Field type="ulong" contentType="bytes" name="reservedSize" label="Reserved Size" description="Size of the reserved memory for the virtual space" />
 209   </Type>
 210 
 211   <Type name="ObjectSpace">
 212     <Field type="ulong" contentType="address" name="start" label="Start Address" description="Start address of the space" />
 213     <Field type="ulong" contentType="address" name="end" label="End Address" description="End address of the space" />
 214     <Field type="ulong" contentType="bytes" name="used" label="Used" description="Bytes allocated by objects in the space" />
 215     <Field type="ulong" contentType="bytes" name="size" label="Size" description="Size of the space" />
 216   </Type>
 217 
 218   <Event name="GCHeapSummary" category="Java Virtual Machine, GC, Heap" label="Heap Summary" startTime="false">
 219     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 220     <Field type="GCWhen" name="when" label="When" />
 221     <Field type="VirtualSpace" struct="true" name="heapSpace" label="Heap Space" />
 222     <Field type="ulong" contentType="bytes" name="heapUsed" label="Heap Used" description="Bytes allocated by objects in the heap" />
 223   </Event>
 224 
 225   <Type name="MetaspaceSizes">
 226     <Field type="ulong" contentType="bytes" name="committed" label="Committed" description="Committed memory for this space" />
 227     <Field type="ulong" contentType="bytes" name="used" label="Used" description="Bytes allocated by objects in the space" />
 228     <Field type="ulong" contentType="bytes" name="reserved" label="Reserved" description="Reserved memory for this space" />
 229   </Type>
 230 
 231   <Event name="MetaspaceSummary" category="Java Virtual Machine, GC, Heap" label="Metaspace Summary" startTime="false">
 232     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 233     <Field type="GCWhen" name="when" label="When" />
 234     <Field type="ulong" contentType="bytes" name="gcThreshold" label="GC Threshold" />
 235     <Field type="MetaspaceSizes" struct="true" name="metaspace" label="Total" />
 236     <Field type="MetaspaceSizes" struct="true" name="dataSpace" label="Data" />
 237     <Field type="MetaspaceSizes" struct="true" name="classSpace" label="Class" />
 238   </Event>
 239 
 240   <Event name="MetaspaceGCThreshold" category="Java Virtual Machine, GC, Metaspace" label="Metaspace GC Threshold" startTime="false">
 241     <Field type="ulong" contentType="bytes" name="oldValue" label="Old Value" />
 242     <Field type="ulong" contentType="bytes" name="newValue" label="New Value" />
 243     <Field type="GCThresholdUpdater" name="updater" label="Updater" />
 244   </Event>
 245 
 246   <Event name="MetaspaceAllocationFailure" category="Java Virtual Machine, GC, Metaspace" label="Metaspace Allocation Failure" startTime="false"
 247     stackTrace="true">
 248     <Field type="ClassLoader" name="classLoader" label="Class Loader" />
 249     <Field type="boolean" name="hiddenClassLoader" label="Hidden Class Loader" />
 250     <Field type="ulong" contentType="bytes" name="size" label="Size" />
 251     <Field type="MetadataType" name="metadataType" label="Metadata Type" />
 252     <Field type="MetaspaceObjectType" name="metaspaceObjectType" label="Metaspace Object Type" />
 253   </Event>
 254 
 255   <Event name="MetaspaceOOM" category="Java Virtual Machine, GC, Metaspace" label="Metaspace Out of Memory" startTime="false" stackTrace="true">
 256     <Field type="ClassLoader" name="classLoader" label="Class Loader" />
 257     <Field type="boolean" name="hiddenClassLoader" label="Hidden Class Loader" />
 258     <Field type="ulong" contentType="bytes" name="size" label="Size" />
 259     <Field type="MetadataType" name="metadataType" label="Metadata Type" />
 260     <Field type="MetaspaceObjectType" name="metaspaceObjectType" label="Metaspace Object Type" />
 261   </Event>
 262 
 263   <Event name="MetaspaceChunkFreeListSummary" category="Java Virtual Machine, GC, Metaspace" label="Metaspace Chunk Free List Summary" startTime="false">
 264     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 265     <Field type="GCWhen" name="when" label="When" />
 266     <Field type="MetadataType" name="metadataType" label="Metadata Type" />
 267     <Field type="ulong" name="specializedChunks" label="Specialized Chunks" />
 268     <Field type="ulong" contentType="bytes" name="specializedChunksTotalSize" label="Specialized Chunks Total Size" />
 269     <Field type="ulong" name="smallChunks" label="Small Chunks" />
 270     <Field type="ulong" contentType="bytes" name="smallChunksTotalSize" label="Small Chunks Total Size" />
 271     <Field type="ulong" name="mediumChunks" label="Medium Chunks" />
 272     <Field type="ulong" contentType="bytes" name="mediumChunksTotalSize" label="Medium Chunks Total Size" />
 273     <Field type="ulong" name="humongousChunks" label="Humongous Chunks" />
 274     <Field type="ulong" contentType="bytes" name="humongousChunksTotalSize" label="Humongous Chunks Total Size" />
 275   </Event>
 276 
 277   <Event name="PSHeapSummary" category="Java Virtual Machine, GC, Heap" label="Parallel Scavenge Heap Summary" startTime="false">
 278     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 279     <Field type="GCWhen" name="when" label="When" />
 280     <Field type="VirtualSpace" struct="true" name="oldSpace" label="Old Space" />
 281     <Field type="ObjectSpace" struct="true" name="oldObjectSpace" label="Old Object Space" />
 282     <Field type="VirtualSpace" struct="true" name="youngSpace" label="Young Space" />
 283     <Field type="ObjectSpace" struct="true" name="edenSpace" label="Eden Space" />
 284     <Field type="ObjectSpace" struct="true" name="fromSpace" label="From Space" />
 285     <Field type="ObjectSpace" struct="true" name="toSpace" label="To Space" />
 286   </Event>
 287 
 288   <Event name="G1HeapSummary" category="Java Virtual Machine, GC, Heap" label="G1 Heap Summary" startTime="false">
 289     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 290     <Field type="GCWhen" name="when" label="When" />
 291     <Field type="ulong" contentType="bytes" name="edenUsedSize" label="Eden Used Size" />
 292     <Field type="ulong" contentType="bytes" name="edenTotalSize" label="Eden Total Size" />
 293     <Field type="ulong" contentType="bytes" name="survivorUsedSize" label="Survivor Used Size" />
 294     <Field type="uint" name="numberOfRegions" label="Number of Regions" />
 295   </Event>
 296 
 297   <Event name="GarbageCollection" category="Java Virtual Machine, GC, Collector" label="Garbage Collection" description="Garbage collection performed by the JVM">
 298     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 299     <Field type="GCName" name="name" label="Name" description="The name of the Garbage Collector" />
 300     <Field type="GCCause" name="cause" label="Cause" description="The reason for triggering this Garbage Collection" />
 301     <Field type="Tickspan" name="sumOfPauses" label="Sum of Pauses" description="Sum of all the times in which Java execution was paused during the garbage collection" />
 302     <Field type="Tickspan" name="longestPause" label="Longest Pause" description="Longest individual pause during the garbage collection" />
 303   </Event>
 304 
 305   <Event name="SystemGC" category="Java Virtual Machine, GC, Collector" label="System GC" stackTrace="true" startTime="true" thread="true">
 306     <Field type="boolean" name="invokedConcurrent" label="Invoked Concurrent" />
 307   </Event>
 308 
 309   <Event name="ParallelOldGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Parallel Old Garbage Collection"
 310     description="Extra information specific to Parallel Old Garbage Collections">
 311     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 312     <Field type="ulong" contentType="address" name="densePrefix" label="Dense Prefix" description="The address of the dense prefix, used when compacting" />
 313   </Event>
 314 
 315   <Event name="YoungGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Young Garbage Collection" description="Extra information specific to Young Garbage Collections">
 316     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 317     <Field type="uint" name="tenuringThreshold" label="Tenuring Threshold" />
 318   </Event>
 319 
 320   <Event name="OldGarbageCollection" category="Java Virtual Machine, GC, Collector" label="Old Garbage Collection" description="Extra information specific to Old Garbage Collections">
 321     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 322   </Event>
 323 
 324   <Event name="G1GarbageCollection" category="Java Virtual Machine, GC, Collector" label="G1 Young Garbage Collection" description="Extra information specific to G1 Young Garbage Collections">
 325     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 326     <Field type="G1YCType" name="type" label="Type"/>
 327   </Event>
 328 
 329   <Event name="G1MMU" category="Java Virtual Machine, GC, Detailed" label="G1 MMU Information" startTime="false">
 330     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 331     <Field type="long" contentType="millis" name="timeSlice" label="Time Slice" description="Time slice used to calculate MMU" />
 332     <Field type="long" contentType="millis" name="gcTime" label="GC Time" description="Time stopped because of GC during last time slice" />
 333     <Field type="long" contentType="millis" name="pauseTarget" label="Pause Target" description="Max time allowed to be spent on GC during last time slice" />
 334   </Event>
 335 
 336   <Event name="EvacuationInformation" category="Java Virtual Machine, GC, Detailed" label="Evacuation Information" startTime="false">
 337     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 338     <Field type="uint" name="cSetRegions" label="Collection Set Regions" />
 339     <Field type="ulong" contentType="bytes" name="cSetUsedBefore" label="Collection Set Before" description="Memory usage before GC in the collection set regions" />
 340     <Field type="ulong" contentType="bytes" name="cSetUsedAfter" label="Collection Set After" description="Memory usage after GC in the collection set regions" />
 341     <Field type="uint" name="allocationRegions" label="Allocation Regions" description="Regions chosen as allocation regions during evacuation (includes survivors and old space regions)" />
 342     <Field type="ulong" contentType="bytes" name="allocationRegionsUsedBefore" label="Allocation Regions Before" description="Memory usage before GC in allocation regions" />
 343     <Field type="ulong" contentType="bytes" name="allocationRegionsUsedAfter" label="Allocation Regions After" description="Memory usage after GC in allocation regions" />
 344     <Field type="ulong" contentType="bytes" name="bytesCopied" label="Bytes Copied" />
 345     <Field type="uint" name="regionsFreed" label="Regions Freed" />
 346   </Event>
 347 
 348   <Event name="GCReferenceStatistics" category="Java Virtual Machine, GC, Reference" label="GC Reference Statistics" startTime="false"
 349     description="Total count of processed references during GC">
 350     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 351     <Field type="ReferenceType" name="type" label="Type" />
 352     <Field type="ulong" name="count" label="Total Count" />
 353   </Event>
 354 
 355   <Type name="CopyFailed">
 356     <Field type="ulong" name="objectCount" label="Object Count" />
 357     <Field type="ulong" contentType="bytes" name="firstSize" label="First Failed Object Size" />
 358     <Field type="ulong" contentType="bytes" name="smallestSize" label="Smallest Failed Object Size" />
 359     <Field type="ulong" contentType="bytes" name="totalSize" label="Total Object Size" />
 360   </Type>
 361 
 362   <Event name="ObjectCountAfterGC" category="Java Virtual Machine, GC, Detailed" startTime="false" label="Object Count after GC">
 363     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 364     <Field type="Class" name="objectClass" label="Object Class" />
 365     <Field type="long" name="count" label="Count" />
 366     <Field type="ulong" contentType="bytes" name="totalSize" label="Total Size" />
 367   </Event>
 368 
 369   <Type name="G1EvacuationStatistics">
 370     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 371     <Field type="ulong" contentType="bytes" name="allocated" label="Allocated" description="Total memory allocated by PLABs" />
 372     <Field type="ulong" contentType="bytes" name="wasted" label="Wasted" description="Total memory wasted within PLABs due to alignment or refill" />
 373     <Field type="ulong" contentType="bytes" name="used" label="Used" description="Total memory occupied by objects within PLABs" />
 374     <Field type="ulong" contentType="bytes" name="undoWaste" label="Undo Wasted" description="Total memory wasted due to allocation undo within PLABs" />
 375     <Field type="ulong" contentType="bytes" name="regionEndWaste" label="Region End Wasted" description="Total memory wasted at the end of regions due to refill" />
 376     <Field type="uint" contentType="bytes" name="regionsRefilled" label="Region Refills" description="Total memory wasted at the end of regions due to refill" />
 377     <Field type="ulong" contentType="bytes" name="directAllocated" label="Allocated (direct)" description="Total memory allocated using direct allocation outside of PLABs" />
 378     <Field type="ulong" contentType="bytes" name="failureUsed" label="Used (failure)" description="Total memory occupied by objects in regions where evacuation failed" />
 379     <Field type="ulong" contentType="bytes" name="failureWaste" label="Wasted (failure)" description="Total memory left unused in regions where evacuation failed" />
 380   </Type>
 381 
 382   <Event name="G1EvacuationYoungStatistics" category="Java Virtual Machine, GC, Detailed" label="G1 Evacuation Statistics for Young" startTime="false"
 383     description="Memory related evacuation statistics during GC for the young generation">
 384     <Field type="G1EvacuationStatistics" struct="true" name="statistics" label="Evacuation Statistics" />
 385   </Event>
 386 
 387   <Event name="G1EvacuationOldStatistics" category="Java Virtual Machine, GC, Detailed" label="G1 Evacuation Memory Statistics for Old" startTime="false"
 388     description="Memory related evacuation statistics during GC for the old generation">
 389     <Field type="G1EvacuationStatistics" struct="true" name="statistics" label="Evacuation Statistics" />
 390   </Event>
 391 
 392   <Event name="G1BasicIHOP" category="Java Virtual Machine, GC, Detailed" label="G1 Basic IHOP Statistics" startTime="false"
 393     description="Basic statistics related to current IHOP calculation">
 394     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 395     <Field type="ulong" contentType="bytes" name="threshold" label="Current IHOP Threshold" description="Current IHOP threshold" />
 396     <Field type="float" contentType="percentage" name="thresholdPercentage" label="Current IHOP Threshold" description="Current IHOP threshold in percent of old generation" />
 397     <Field type="ulong" contentType="bytes" name="targetOccupancy" label="Target Occupancy" description="Target old generation occupancy to reach at the start of mixed GC" />
 398     <Field type="ulong" contentType="bytes" name="currentOccupancy" label="Current Occupancy" description="Current old generation occupancy" />
 399     <Field type="ulong" contentType="bytes" name="recentMutatorAllocationSize" label="Recent Mutator Allocation Size"
 400       description="Mutator allocation during mutator operation in the most recent interval" />
 401     <Field type="long" contentType="millis" name="recentMutatorDuration" label="Recent Mutator Duration" description="Time the mutator ran in the most recent interval" />
 402     <Field type="double" contentType="bytes-per-second" name="recentAllocationRate" label="Recent Allocation Rate" description="Allocation rate of the mutator in the most recent interval in bytes/second" />
 403     <Field type="long" contentType="millis" name="lastMarkingDuration" label="Last Marking Duration" description="Last time from the end of the last concurrent start to the first mixed GC" />
 404   </Event>
 405 
 406   <Event name="G1AdaptiveIHOP" category="Java Virtual Machine, GC, Detailed" label="G1 Adaptive IHOP Statistics" startTime="false"
 407     description="Statistics related to current adaptive IHOP calculation">
 408     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 409     <Field type="ulong" contentType="bytes" name="threshold" label="Threshold" description="Current IHOP Threshold" />
 410     <Field type="float" contentType="percentage" name="thresholdPercentage" label="Threshold" description="Current IHOP threshold in percent of the internal target occupancy" />
 411     <Field type="ulong" contentType="bytes" name="ihopTargetOccupancy" label="IHOP Target Occupancy" description="Internal target old generation occupancy to reach at the start of mixed GC" />
 412     <Field type="ulong" contentType="bytes" name="currentOccupancy" label="Current Occupancy" description="Current old generation occupancy" />
 413     <Field type="ulong" contentType="bytes" name="additionalBufferSize" label="Additional Buffer" description="Additional buffer size" experimental="true" />
 414     <Field type="double" contentType="bytes-per-second" name="predictedAllocationRate" label="Predicted Allocation Rate" description="Current predicted allocation rate for the mutator in bytes/second" />
 415     <Field type="long" contentType="millis" name="predictedMarkingDuration" label="Predicted Marking Duration"
 416       description="Current predicted time from the end of the last concurrent start to the first mixed GC" />
 417     <Field type="boolean" name="predictionActive" label="Prediction Active" description="Indicates whether the adaptive IHOP prediction is active" />
 418   </Event>
 419 
 420   <Event name="PromoteObjectInNewPLAB" category="Java Virtual Machine, GC, Detailed" label="Promotion in new PLAB"
 421     description="Object survived scavenge and was copied to a new Promotion Local Allocation Buffer (PLAB). Supported GCs are Parallel Scavange, G1 and CMS with Parallel New. Due to promotion being done in parallel an object might be reported multiple times as the GC threads race to copy all objects."
 422     thread="true" stackTrace="false" startTime="false">
 423     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" description="Identifier signifying GC during which the object was promoted" />
 424     <Field type="Class" name="objectClass" label="Object Class" description="Class of promoted object" />
 425     <Field type="ulong" contentType="bytes" name="objectSize" label="Object Size" description="Size of promoted object" />
 426     <Field type="uint" name="tenuringAge" label="Object Tenuring Age"
 427       description="Tenuring age of a surviving object before being copied. The tenuring age of an object is a value between 0-15 and is incremented each scavange the object survives. Newly allocated objects have tenuring age 0." />
 428     <Field type="boolean" name="tenured" label="Tenured" description="True if object was promoted to Old space, otherwise the object was aged and copied to a Survivor space" />
 429     <Field type="ulong" contentType="bytes" name="plabSize" label="PLAB Size" description="Size of the allocated PLAB to which the object was copied" />
 430   </Event>
 431 
 432   <Event name="PromoteObjectOutsidePLAB" category="Java Virtual Machine, GC, Detailed" label="Promotion outside PLAB"
 433     description="Object survived scavenge and was copied directly to the heap. Supported GCs are Parallel Scavange, G1 and CMS with Parallel New. Due to promotion being done in parallel an object might be reported multiple times as the GC threads race to copy all objects."
 434     thread="true" stackTrace="false" startTime="false">
 435     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" description="Identifier signifying GC during which the object was promoted" />
 436     <Field type="Class" name="objectClass" label="Object Class" description="Class of promoted object" />
 437     <Field type="ulong" contentType="bytes" name="objectSize" label="Object Size" description="Size of promoted object" />
 438     <Field type="uint" name="tenuringAge" label="Object Tenuring Age"
 439       description="Tenuring age of a surviving object before being copied. The tenuring age of an object is a value between 0-15 and is incremented each scavange the object survives. Newly allocated objects have tenuring age 0." />
 440     <Field type="boolean" name="tenured" label="Tenured" description="True if object was promoted to Old space, otherwise the object was aged and copied to a Survivor space" />
 441   </Event>
 442 
 443   <Event name="PromotionFailed" category="Java Virtual Machine, GC, Detailed" label="Promotion Failed" startTime="false" description="Promotion of an object failed">
 444     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 445     <Field type="CopyFailed" struct="true" name="promotionFailed" label="Promotion Failed Data" />
 446     <Field type="Thread" name="thread" label="Running thread" />
 447   </Event>
 448 
 449   <Event name="EvacuationFailed" category="Java Virtual Machine, GC, Detailed" label="Evacuation Failed" startTime="false" description="Evacuation of an object failed">
 450     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 451     <Field type="CopyFailed" struct="true" name="evacuationFailed" label="Evacuation Failed Data" />
 452   </Event>
 453 
 454   <Event name="ConcurrentModeFailure" category="Java Virtual Machine, GC, Detailed" label="Concurrent Mode Failure" startTime="false" description="Concurrent Mode failed">
 455     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 456   </Event>
 457 
 458   <Event name="GCPhasePause" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause" thread="true">
 459     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 460     <Field type="string" name="name" label="Name" />
 461   </Event>
 462 
 463   <Event name="GCPhasePauseLevel1" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 1" thread="true">
 464     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 465     <Field type="string" name="name" label="Name" />
 466   </Event>
 467 
 468   <Event name="GCPhasePauseLevel2" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 2" thread="true">
 469     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 470     <Field type="string" name="name" label="Name" />
 471   </Event>
 472 
 473   <Event name="GCPhasePauseLevel3" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 3" thread="true">
 474     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 475     <Field type="string" name="name" label="Name" />
 476   </Event>
 477 
 478   <Event name="GCPhasePauseLevel4" category="Java Virtual Machine, GC, Phases" label="GC Phase Pause Level 4" thread="true">
 479     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 480     <Field type="string" name="name" label="Name" />
 481   </Event>
 482 
 483   <Event name="GCPhaseConcurrent" category="Java Virtual Machine, GC, Phases" label="GC Phase Concurrent" thread="true">
 484     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 485     <Field type="string" name="name" label="Name" />
 486   </Event>
 487 
 488   <Event name="GCPhaseConcurrentLevel1" category="Java Virtual Machine, GC, Phases" label="GC Phase Concurrent Level 1" thread="true">
 489     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 490     <Field type="string" name="name" label="Name" />
 491   </Event>
 492 
 493   <Event name="GCPhaseParallel" category="Java Virtual Machine, GC, Phases" label="GC Phase Parallel"
 494          startTime="true" thread="true" description="GC phases for parallel workers">
 495     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId"/>
 496     <Field type="uint" name="gcWorkerId" label="GC Worker Identifier" />
 497     <Field type="string" name="name" label="Name" />
 498   </Event>
 499 
 500   <Event name="AllocationRequiringGC" category="Java Virtual Machine, GC, Detailed" label="Allocation Requiring GC" thread="true" stackTrace="true"
 501     startTime="false">
 502     <Field type="uint" name="gcId" label="Pending GC Identifier" relation="GcId" />
 503     <Field type="ulong" contentType="bytes" name="size" label="Allocation Size" />
 504   </Event>
 505 
 506   <Event name="TenuringDistribution" category="Java Virtual Machine, GC, Detailed" label="Tenuring Distribution" startTime="false">
 507     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 508     <Field type="uint" name="age" label="Age" />
 509     <Field type="ulong" contentType="bytes" name="size" label="Size" />
 510   </Event>
 511 
 512   <Event name="G1HeapRegionTypeChange" category="Java Virtual Machine, GC, Detailed" label="G1 Heap Region Type Change" description="Information about a G1 heap region type change"
 513     startTime="false">
 514     <Field type="uint" name="index" label="Index" />
 515     <Field type="G1HeapRegionType" name="from" label="From" />
 516     <Field type="G1HeapRegionType" name="to" label="To" />
 517     <Field type="ulong" contentType="address" name="start" label="Start" />
 518     <Field type="ulong" contentType="bytes" name="used" label="Used" />
 519   </Event>
 520 
 521   <Event name="Compilation" category="Java Virtual Machine, Compiler" label="Compilation" thread="true" commitState="_thread_in_native">
 522     <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />
 523     <Field type="CompilerType" name="compiler" label="Compiler" />
 524     <Field type="Method" name="method" label="Method" />
 525     <Field type="ushort" name="compileLevel" label="Compilation Level" />
 526     <Field type="boolean" name="succeded" label="Succeeded" />
 527     <Field type="boolean" name="isOsr" label="On Stack Replacement" />
 528     <Field type="ulong" contentType="bytes" name="codeSize" label="Compiled Code Size" />
 529     <Field type="ulong" contentType="bytes" name="inlinedBytes" label="Inlined Code Size" />
 530   </Event>
 531 
 532   <Event name="CompilerPhase" category="Java Virtual Machine, Compiler" label="Compiler Phase" thread="true" >
 533     <Field type="CompilerPhaseType" name="phase" label="Compile Phase" />
 534     <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />
 535     <Field type="ushort" name="phaseLevel" label="Phase Level" />
 536   </Event>
 537 
 538   <Event name="CompilationFailure" category="Java Virtual Machine, Compiler" label="Compilation Failure" thread="true"  startTime="false">
 539     <Field type="string" name="failureMessage" label="Failure Message" />
 540     <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />
 541   </Event>
 542 
 543   <Type name="CalleeMethod">
 544     <Field type="string" name="type" label="Class" />
 545     <Field type="string" name="name" label="Method Name" />
 546     <Field type="string" name="descriptor" label="Method Descriptor" />
 547   </Type>
 548 
 549   <Event name="CompilerInlining" category="Java Virtual Machine, Compiler, Optimization" label="Method Inlining" thread="true" startTime="false" commitState="_thread_in_native">
 550     <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />
 551     <Field type="Method" name="caller" label="Caller Method" />
 552     <Field type="CalleeMethod" name="callee" struct="true" label="Callee Method" />
 553     <Field type="boolean" name="succeeded" label="Succeeded" />
 554     <Field type="string" name="message" label="Message" />
 555     <Field type="int" name="bci" label="Bytecode Index" />
 556   </Event>
 557 
 558   <Event name="SweepCodeCache" category="Java Virtual Machine, Code Sweeper" label="Sweep Code Cache" thread="true" >
 559     <Field type="int" name="sweepId" label="Sweep Identifier" relation="SweepId" />
 560     <Field type="uint" name="sweptCount" label="Methods Swept" />
 561     <Field type="uint" name="flushedCount" label="Methods Flushed" />
 562     <Field type="uint" name="zombifiedCount" label="Methods Zombified" />
 563   </Event>
 564 
 565   <Event name="CodeCacheFull" category="Java Virtual Machine, Code Cache" label="Code Cache Full" thread="true" startTime="false">
 566     <Field type="CodeBlobType" name="codeBlobType" label="Code Heap" />
 567     <Field type="ulong" contentType="address" name="startAddress" label="Start Address" />
 568     <Field type="ulong" contentType="address" name="commitedTopAddress" label="Commited Top" />
 569     <Field type="ulong" contentType="address" name="reservedTopAddress" label="Reserved Top" />
 570     <Field type="int" name="entryCount" label="Entries" />
 571     <Field type="int" name="methodCount" label="Methods" />
 572     <Field type="int" name="adaptorCount" label="Adaptors" />
 573     <Field type="ulong" contentType="bytes" name="unallocatedCapacity" label="Unallocated" />
 574     <Field type="int" name="fullCount" label="Full Count" />
 575   </Event>
 576 
 577   <Event name="Deoptimization" category="Java Virtual Machine, Compiler" label="Deoptimization" thread="true" stackTrace="true" startTime="false">
 578     <Field type="uint" name="compileId" label="Compilation Identifier" relation="CompileId" />
 579     <Field type="CompilerType" name="compiler" label="Compiler" />
 580     <Field type="Method" name="method" label="Method" />
 581     <Field type="int" name="lineNumber" label="Line Number" />
 582     <Field type="int" name="bci" label="Bytecode Index" />
 583     <Field type="Bytecode" name="instruction" label="Instruction" />
 584     <Field type="DeoptimizationReason" name="reason" label="Reason"/>
 585     <Field type="DeoptimizationAction" name="action" label="Action"/>
 586   </Event>
 587 
 588   <Event name="SafepointBegin" category="Java Virtual Machine, Runtime, Safepoint" label="Safepoint Begin" description="Safepointing begin" thread="true">
 589     <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />
 590     <Field type="int" name="totalThreadCount" label="Total Threads" description="The total number of threads at the start of safe point" />
 591     <Field type="int" name="jniCriticalThreadCount" label="JNI Critical Threads" description="The number of threads in JNI critical sections" />
 592   </Event>
 593 
 594   <Event name="SafepointStateSynchronization" category="Java Virtual Machine, Runtime, Safepoint" label="Safepoint State Synchronization" description="Synchronize run state of threads"
 595     thread="true">
 596     <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />
 597     <Field type="int" name="initialThreadCount" label="Initial Threads" description="The number of threads running at the beginning of state check" />
 598     <Field type="int" name="runningThreadCount" label="Running Threads" description="The number of threads still running" />
 599     <Field type="int" name="iterations" label="Iterations" description="Number of state check iterations" />
 600   </Event>
 601 
 602   <Event name="SafepointCleanup" category="Java Virtual Machine, Runtime, Safepoint" label="Safepoint Cleanup" description="Safepointing begin running cleanup tasks"
 603     thread="true">
 604     <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />
 605   </Event>
 606 
 607   <Event name="SafepointCleanupTask" category="Java Virtual Machine, Runtime, Safepoint" label="Safepoint Cleanup Task" description="Safepointing begin running cleanup tasks"
 608     thread="true">
 609     <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />
 610     <Field type="string" name="name" label="Task Name" description="The task name" />
 611   </Event>
 612 
 613   <Event name="SafepointEnd" category="Java Virtual Machine, Runtime, Safepoint" label="Safepoint End" description="Safepointing end" thread="true">
 614     <Field type="ulong" name="safepointId" label="Safepoint Identifier" relation="SafepointId" />
 615   </Event>
 616 
 617   <Event name="ExecuteVMOperation" category="Java Virtual Machine, Runtime" label="VM Operation" description="Execution of a VM Operation" thread="true">
 618     <Field type="VMOperationType" name="operation" label="Operation" />
 619     <Field type="boolean" name="safepoint" label="At Safepoint" description="If the operation occured at a safepoint" />
 620     <Field type="boolean" name="blocking" label="Caller Blocked" description="If the calling thread was blocked until the operation was complete" />
 621     <Field type="Thread" name="caller" label="Caller" transition="from"
 622       description="Thread requesting operation. If non-blocking, will be set to 0 indicating thread is unknown" />
 623     <Field type="ulong" name="safepointId" label="Safepoint Identifier" description="The safepoint (if any) under which this operation was completed"
 624       relation="SafepointId" />
 625   </Event>
 626 
 627   <Event name="Shutdown" category="Java Virtual Machine, Runtime" label="JVM Shutdown" description="JVM shutting down" thread="true" stackTrace="true"
 628     startTime="false">
 629     <Field type="string" name="reason" label="Reason" description="Reason for JVM shutdown" />
 630   </Event>
 631 
 632   <Event name="ObjectAllocationInNewTLAB" category="Java Application" label="Allocation in new TLAB" description="Allocation in new Thread Local Allocation Buffer"
 633     thread="true" stackTrace="true" startTime="false">
 634     <Field type="Class" name="objectClass" label="Object Class" description="Class of allocated object" />
 635     <Field type="ulong" contentType="bytes" name="allocationSize" label="Allocation Size" />
 636     <Field type="ulong" contentType="bytes" name="tlabSize" label="TLAB Size" />
 637   </Event>
 638 
 639   <Event name="ObjectAllocationOutsideTLAB" category="Java Application" label="Allocation outside TLAB" description="Allocation outside Thread Local Allocation Buffers"
 640     thread="true" stackTrace="true" startTime="false">
 641     <Field type="Class" name="objectClass" label="Object Class" description="Class of allocated object" />
 642     <Field type="ulong" contentType="bytes" name="allocationSize" label="Allocation Size" />
 643   </Event>
 644 
 645   <Event name="ObjectAllocationSample" category="Java Application" label="Object Allocation Sample" thread="true" stackTrace="true" startTime="false" throttle="true">
 646     <Field type="Class" name="objectClass" label="Object Class" description="Class of allocated object" />
 647     <Field type="long" contentType="bytes" name="weight" label="Sample Weight"
 648       description="The relative weight of the sample. Aggregating the weights for a large number of samples, for a particular class, thread or stack trace, gives a statistically accurate representation of the allocation pressure" />
 649   </Event>
 650 
 651   <Event name="OldObjectSample" category="Java Virtual Machine, Profiling" label="Old Object Sample" description="A potential memory leak" stackTrace="true" thread="true"
 652     startTime="false" cutoff="true">
 653     <Field type="Ticks" name="allocationTime" label="Allocation Time" />
 654     <Field type="ulong" contentType="bytes" name="objectSize" label="Object Size" />
 655     <Field type="Tickspan" name="objectAge" label="Object Age" />
 656     <Field type="ulong" contentType="bytes" name="lastKnownHeapUsage" label="Last Known Heap Usage" />
 657     <Field type="OldObject" name="object" label="Object" />
 658     <Field type="int" name="arrayElements" label="Array Elements" description="If the object is an array, the number of elements, or -1 if it is not an array" />
 659     <Field type="OldObjectGcRoot" name="root" label="GC Root" />
 660   </Event>
 661 
 662   <Event name="DumpReason" category="Flight Recorder" label="Recording Reason"
 663          description="Who requested the recording and why"
 664          startTime="false">
 665     <Field type="string" name="reason" label="Reason" description="Reason for writing recording data to disk" />
 666     <Field type="int" name="recordingId" label="Recording Id" description="Id of the recording that triggered the dump, or -1 if it was not related to a recording" />
 667   </Event>
 668 
 669   <Event name="DataLoss" category="Flight Recorder" label="Data Loss"
 670          description="Data could not be copied out from a buffer, typically because of contention"
 671          startTime="false">
 672     <Field type="ulong" contentType="bytes" name="amount" label="Amount" description="Amount lost data" />
 673     <Field type="ulong" contentType="bytes" name="total" label="Total" description="Total lost amount for thread" />
 674   </Event>
 675 
 676   <Event name="JVMInformation" category="Java Virtual Machine" label="JVM Information"
 677          description="Description of JVM and the Java application"
 678          period="endChunk">
 679     <Field type="string" name="jvmName" label="JVM Name" />
 680     <Field type="string" name="jvmVersion" label="JVM Version" />
 681     <Field type="string" name="jvmArguments" label="JVM Command Line Arguments" />
 682     <Field type="string" name="jvmFlags" label="JVM Settings File Arguments" />
 683     <Field type="string" name="javaArguments" label="Java Application Arguments" />
 684     <Field type="long" contentType="epochmillis" name="jvmStartTime" label="JVM Start Time" />
 685     <Field type="long" name="pid" label="Process Identifier" />
 686      </Event>
 687 
 688   <Event name="OSInformation" category="Operating System" label="OS Information" period="endChunk">
 689     <Field type="string" name="osVersion" label="OS Version" />
 690   </Event>
 691 
 692   <Event name="VirtualizationInformation" category="Operating System" label="Virtualization Information" period="endChunk">
 693     <Field type="string" name="name" label="Name" />
 694   </Event>
 695 
 696   <Event name="InitialSystemProperty" category="Java Virtual Machine" label="Initial System Property" description="System Property at JVM start" period="endChunk">
 697     <Field type="string" name="key" label="Key" />
 698     <Field type="string" name="value" label="Value" />
 699   </Event>
 700 
 701   <Event name="InitialEnvironmentVariable" category="Operating System" label="Initial Environment Variable" period="endChunk">
 702     <Field type="string" name="key" label="Key" />
 703     <Field type="string" name="value" label="Value" />
 704   </Event>
 705 
 706   <Event name="SystemProcess" category="Operating System" label="System Process" period="endChunk">
 707     <Field type="string" name="pid" label="Process Identifier" />
 708     <Field type="string" name="commandLine" label="Command Line" />
 709   </Event>
 710 
 711   <Event name="CPUInformation" category="Operating System, Processor" label="CPU Information" period="endChunk">
 712     <Field type="string" name="cpu" label="Type" />
 713     <Field type="string" name="description" label="Description" />
 714     <Field type="uint" name="sockets" label="Sockets" />
 715     <Field type="uint" name="cores" label="Cores" />
 716     <Field type="uint" name="hwThreads" label="Hardware Threads" />
 717   </Event>
 718 
 719   <Event name="CPUTimeStampCounter" category="Operating System, Processor" label="CPU Time Stamp Counter" period="endChunk">
 720     <Field type="boolean" name="fastTimeEnabled" label="Fast Time" />
 721     <Field type="boolean" name="fastTimeAutoEnabled" label="Trusted Platform" />
 722     <Field type="long" contentType="hertz" name="osFrequency" label="OS Frequency" />
 723     <Field type="long" contentType="hertz" name="fastTimeFrequency" label="Fast Time Frequency" />
 724   </Event>
 725 
 726   <Event name="CPULoad" category="Operating System, Processor" label="CPU Load" description="OS CPU Load" period="everyChunk">
 727     <Field type="float" contentType="percentage" name="jvmUser" label="JVM User" />
 728     <Field type="float" contentType="percentage" name="jvmSystem" label="JVM System" />
 729     <Field type="float" contentType="percentage" name="machineTotal" label="Machine Total" />
 730   </Event>
 731 
 732   <Event name="ThreadCPULoad" category="Operating System, Processor" label="Thread CPU Load" period="everyChunk" thread="true">
 733     <Field type="float" contentType="percentage" name="user" label="User Mode CPU Load" description="User mode thread CPU load" />
 734     <Field type="float" contentType="percentage" name="system" label="System Mode CPU Load" description="System mode thread CPU load" />
 735   </Event>
 736 
 737   <Event name="ThreadContextSwitchRate" category="Operating System, Processor" label="Thread Context Switch Rate" period="everyChunk">
 738     <Field type="float" contentType="hertz" name="switchRate" label="Switch Rate" description="Number of context switches per second" />
 739   </Event>
 740 
 741   <Event name="NetworkUtilization" category="Operating System, Network" label="Network Utilization" period="everyChunk">
 742     <Field type="NetworkInterfaceName" name="networkInterface" label="Network Interface" description="Network Interface Name"/>
 743     <Field type="long" contentType="bits-per-second" name="readRate" label="Read Rate" description="Number of incoming bits per second"/>
 744     <Field type="long" contentType="bits-per-second" name="writeRate" label="Write Rate" description="Number of outgoing bits per second"/>
 745   </Event>
 746 
 747   <Event name="JavaThreadStatistics" category="Java Application, Statistics" label="Java Thread Statistics" period="everyChunk">
 748     <Field type="long" name="activeCount" label="Active Threads" description="Number of live active threads including both daemon and non-daemon threads" />
 749     <Field type="long" name="daemonCount" label="Daemon Threads" description="Number of live daemon threads" />
 750     <Field type="long" name="accumulatedCount" label="Accumulated Threads" description="Number of threads created and also started since JVM start" />
 751     <Field type="long" name="peakCount" label="Peak Threads" description="Peak live thread count since JVM start or when peak count was reset" />
 752   </Event>
 753 
 754   <Event name="ClassLoadingStatistics" category="Java Application, Statistics" label="Class Loading Statistics" period="everyChunk">
 755     <Field type="long" name="loadedClassCount" label="Loaded Class Count" description="Number of classes loaded since JVM start" />
 756     <Field type="long" name="unloadedClassCount" label="Unloaded Class Count" description="Number of classes unloaded since JVM start" />
 757   </Event>
 758 
 759   <Event name="ClassLoaderStatistics" category="Java Application, Statistics" label="Class Loader Statistics" period="everyChunk">
 760     <Field type="ClassLoader" name="classLoader" label="Class Loader" />
 761     <Field type="ClassLoader" name="parentClassLoader" label="Parent Class Loader" />
 762     <Field type="ulong" contentType="address" name="classLoaderData" label="ClassLoaderData Pointer" description="Pointer to the ClassLoaderData structure in the JVM" />
 763     <Field type="long" name="classCount" label="Classes" description="Number of loaded classes" />
 764     <Field type="ulong" contentType="bytes" name="chunkSize" label="Total Chunk Size" description="Total size of all allocated metaspace chunks (each chunk has several blocks)" />
 765     <Field type="ulong" contentType="bytes" name="blockSize" label="Total Block Size" description="Total size of all allocated metaspace blocks (each chunk has several blocks)" />
 766     <Field type="long" name="hiddenClassCount" label="Hidden Classes" description="Number of hidden classes" />
 767     <Field type="ulong" contentType="bytes" name="hiddenChunkSize" label="Total Hidden Classes Chunk Size"
 768       description="Total size of all allocated metaspace chunks for hidden classes (each chunk has several blocks)" />
 769     <Field type="ulong" contentType="bytes" name="hiddenBlockSize" label="Total Hidden Classes Block Size"
 770       description="Total size of all allocated metaspace blocks for hidden classes (each chunk has several blocks)" />
 771   </Event>
 772 
 773   <Event name="SymbolTableStatistics" category="Java Virtual Machine, Runtime, Tables" label="Symbol Table Statistics" period="everyChunk">
 774     <Field type="ulong" name="bucketCount" label="Bucket Count" description="Number of buckets" />
 775     <Field type="ulong" name="entryCount" label="Entry Count" description="Number of all entries" />
 776     <Field type="ulong" contentType="bytes" name="totalFootprint" label="Total Footprint" description="Total memory footprint (the table itself plus all of the entries)" />
 777     <Field type="ulong" name="bucketCountMaximum" label="Maximum Bucket Count" description="The maximum bucket length (entries in a single bucket)" />
 778     <Field type="float" name="bucketCountAverage" label="Average Bucket Count" description="The average bucket length" />
 779     <Field type="float" name="bucketCountVariance" label="Bucket Count Variance" description="How far bucket lengths are spread out from their average value" />
 780     <Field type="float" name="bucketCountStandardDeviation" label="Bucket Count Standard Deviation" description="How far bucket lengths are spread out from their mean (expected) value" />
 781     <Field type="float" name="insertionRate" label="Insertion Rate" description="How many items were added since last event (per second)" />
 782     <Field type="float" name="removalRate" label="Removal Rate" description="How many items were removed since last event (per second)" />
 783   </Event>
 784 
 785   <Event name="StringTableStatistics" category="Java Virtual Machine, Runtime, Tables" label="String Table Statistics" period="everyChunk">
 786     <Field type="ulong" name="bucketCount" label="Bucket Count" description="Number of buckets" />
 787     <Field type="ulong" name="entryCount" label="Entry Count" description="Number of all entries" />
 788     <Field type="ulong" contentType="bytes" name="totalFootprint" label="Total Footprint" description="Total memory footprint (the table itself plus all of the entries)" />
 789     <Field type="ulong" name="bucketCountMaximum" label="Maximum Bucket Count" description="The maximum bucket length (entries in a single bucket)" />
 790     <Field type="float" name="bucketCountAverage" label="Average Bucket Count" description="The average bucket length" />
 791     <Field type="float" name="bucketCountVariance" label="Bucket Count Variance" description="How far bucket lengths are spread out from their average value" />
 792     <Field type="float" name="bucketCountStandardDeviation" label="Bucket Count Standard Deviation" description="How far bucket lengths are spread out from their mean (expected) value" />
 793     <Field type="float" name="insertionRate" label="Insertion Rate" description="How many items were added since last event (per second)" />
 794     <Field type="float" name="removalRate" label="Removal Rate" description="How many items were removed since last event (per second)" />
 795   </Event>
 796 
 797   <Event name="PlaceholderTableStatistics" category="Java Virtual Machine, Runtime, Tables" label="Placeholder Table Statistics" period="everyChunk">
 798     <Field type="ulong" name="bucketCount" label="Bucket Count" description="Number of buckets" />
 799     <Field type="ulong" name="entryCount" label="Entry Count" description="Number of all entries" />
 800     <Field type="ulong" contentType="bytes" name="totalFootprint" label="Total Footprint" description="Total memory footprint (the table itself plus all of the entries)" />
 801     <Field type="ulong" name="bucketCountMaximum" label="Maximum Bucket Count" description="The maximum bucket length (entries in a single bucket)" />
 802     <Field type="float" name="bucketCountAverage" label="Average Bucket Count" description="The average bucket length" />
 803     <Field type="float" name="bucketCountVariance" label="Bucket Count Variance" description="How far bucket lengths are spread out from their average value" />
 804     <Field type="float" name="bucketCountStandardDeviation" label="Bucket Count Standard Deviation" description="How far bucket lengths are spread out from their mean (expected) value" />
 805     <Field type="float" name="insertionRate" label="Insertion Rate" description="How many items were added since last event (per second)" />
 806     <Field type="float" name="removalRate" label="Removal Rate" description="How many items were removed since last event (per second)" />
 807   </Event>
 808 
 809   <Event name="LoaderConstraintsTableStatistics" category="Java Virtual Machine, Runtime, Tables" label="Loader Constraints Table Statistics" period="everyChunk">
 810     <Field type="ulong" name="bucketCount" label="Bucket Count" />
 811     <Field type="ulong" name="entryCount" label="Entry Count" description="Number of all entries" />
 812     <Field type="ulong" contentType="bytes" name="totalFootprint" label="Total Footprint" description="Total memory footprint (the table itself plus all of the entries)" />
 813     <Field type="ulong" name="bucketCountMaximum" label="Maximum Bucket Count" description="The maximum bucket length (entries in a single bucket)" />
 814     <Field type="float" name="bucketCountAverage" label="Average Bucket Count" description="The average bucket length" />
 815     <Field type="float" name="bucketCountVariance" label="Bucket Count Variance" description="How far bucket lengths are spread out from their average value" />
 816     <Field type="float" name="bucketCountStandardDeviation" label="Bucket Count Standard Deviation" description="How far bucket lengths are spread out from their mean (expected) value" />
 817     <Field type="float" name="insertionRate" label="Insertion Rate" description="How many items were added since last event (per second)" />
 818     <Field type="float" name="removalRate" label="Removal Rate" description="How many items were removed since last event (per second)" />
 819   </Event>
 820 
 821   <Event name="ProtectionDomainCacheTableStatistics" category="Java Virtual Machine, Runtime, Tables" label="Protection Domain Cache Table Statistics" period="everyChunk">
 822     <Field type="ulong" name="bucketCount" label="Bucket Count" description="Number of buckets" />
 823     <Field type="ulong" name="entryCount" label="Entry Count" description="Number of all entries" />
 824     <Field type="ulong" contentType="bytes" name="totalFootprint" label="Total Footprint" description="Total memory footprint (the table itself plus all of the entries)" />
 825     <Field type="ulong" name="bucketCountMaximum" label="Maximum Bucket Count" description="The maximum bucket length (entries in a single bucket)" />
 826     <Field type="float" name="bucketCountAverage" label="Average Bucket Count" description="The average bucket length" />
 827     <Field type="float" name="bucketCountVariance" label="Bucket Count Variance" description="How far bucket lengths are spread out from their average value" />
 828     <Field type="float" name="bucketCountStandardDeviation" label="Bucket Count Standard Deviation" description="How far bucket lengths are spread out from their mean (expected) value" />
 829     <Field type="float" name="insertionRate" label="Insertion Rate" description="How many items were added since last event (per second)" />
 830     <Field type="float" name="removalRate" label="Removal Rate" description="How many items were removed since last event (per second)" />
 831   </Event>
 832 
 833   <Event name="ThreadAllocationStatistics" category="Java Application, Statistics" label="Thread Allocation Statistics" period="everyChunk">
 834     <Field type="ulong" contentType="bytes" name="allocated" label="Allocated" description="Approximate number of bytes allocated since thread start" />
 835     <Field type="Thread" name="thread" label="Thread" />
 836   </Event>
 837 
 838   <Event name="PhysicalMemory" category="Operating System, Memory" label="Physical Memory" description="OS Physical Memory" period="everyChunk">
 839     <Field type="ulong" contentType="bytes" name="totalSize" label="Total Size" description="Total amount of physical memory available to OS" />
 840     <Field type="ulong" contentType="bytes" name="usedSize" label="Used Size" description="Total amount of physical memory in use" />
 841   </Event>
 842 
 843   <Event name="ExecutionSample" category="Java Virtual Machine, Profiling" label="Method Profiling Sample" description="Snapshot of a threads state"
 844     period="everyChunk">
 845     <Field type="Thread" name="sampledThread" label="Thread" />
 846     <Field type="StackTrace" name="stackTrace" label="Stack Trace" />
 847     <Field type="ThreadState" name="state" label="Thread State" />
 848   </Event>
 849 
 850   <Event name="NativeMethodSample" category="Java Virtual Machine, Profiling" label="Method Profiling Sample Native" description="Snapshot of a threads state when in native"
 851     period="everyChunk">
 852     <Field type="Thread" name="sampledThread" label="Thread" />
 853     <Field type="StackTrace" name="stackTrace" label="Stack Trace" />
 854     <Field type="ThreadState" name="state" label="Thread State" />
 855   </Event>
 856 
 857   <Event name="ThreadDump" category="Java Virtual Machine, Runtime" label="Thread Dump" period="everyChunk">
 858     <Field type="string" name="result" label="Thread Dump" />
 859   </Event>
 860 
 861   <Event name="NativeLibrary" category="Java Virtual Machine, Runtime" label="Native Library" period="everyChunk">
 862     <Field type="string" name="name" label="Name" />
 863     <Field type="ulong" contentType="address" name="baseAddress" label="Base Address" description="Starting address of the module" />
 864     <Field type="ulong" contentType="address" name="topAddress" label="Top Address" description="Ending address of the module" />
 865   </Event>
 866 
 867   <Event name="ModuleRequire" category="Java Virtual Machine, Runtime, Modules" label="Module Require" thread="false" period="everyChunk"
 868     description="A directed edge representing a dependency">
 869     <Field type="Module" name="source" label="Source Module" />
 870     <Field type="Module" name="requiredModule" label="Required Module" />
 871   </Event>
 872 
 873   <Event name="ModuleExport" category="Java Virtual Machine, Runtime, Modules" label="Module Export" thread="false" period="everyChunk">
 874     <Field type="Package" name="exportedPackage" label="Exported Package" />
 875     <Field type="Module" name="targetModule" label="Target Module"
 876       description="Module to which the package is qualifiedly exported. If null or N/A, the package is unqualifiedly exported" />
 877   </Event>
 878 
 879   <Event name="CompilerStatistics" category="Java Virtual Machine, Compiler" label="Compiler Statistics" thread="false" period="everyChunk" startTime="false">
 880     <Field type="int" name="compileCount" label="Compiled Methods" />
 881     <Field type="int" name="bailoutCount" label="Bailouts" />
 882     <Field type="int" name="invalidatedCount" label="Invalidated Compilations" />
 883     <Field type="int" name="osrCompileCount" label="OSR Compilations" />
 884     <Field type="int" name="standardCompileCount" label="Standard Compilations" />
 885     <Field type="ulong" contentType="bytes" name="osrBytesCompiled" label="OSR Bytes Compiled" />
 886     <Field type="ulong" contentType="bytes" name="standardBytesCompiled" label="Standard Bytes Compiled" />
 887     <Field type="ulong" contentType="bytes" name="nmethodsSize" label="Compilation Resulting Size" />
 888     <Field type="ulong" contentType="bytes" name="nmethodCodeSize" label="Compilation Resulting Code Size" />
 889     <Field type="long" contentType="millis" name="peakTimeSpent" label="Peak Time" />
 890     <Field type="long" contentType="millis" name="totalTimeSpent" label="Total time" />
 891   </Event>
 892 
 893   <Event name="CompilerConfiguration" category="Java Virtual Machine, Compiler" label="Compiler Configuration" thread="false" period="endChunk" startTime="false">
 894     <Field type="int" name="threadCount" label="Thread Count" />
 895     <Field type="boolean" name="tieredCompilation" label="Tiered Compilation" />
 896   </Event>
 897 
 898   <Event name="CodeCacheStatistics" category="Java Virtual Machine, Code Cache" label="Code Cache Statistics" thread="false" period="everyChunk" startTime="false">
 899     <Field type="CodeBlobType" name="codeBlobType" label="Code Heap" />
 900     <Field type="ulong" contentType="address" name="startAddress" label="Start Address" />
 901     <Field type="ulong" contentType="address" name="reservedTopAddress" label="Reserved Top" />
 902     <Field type="int" name="entryCount" label="Entries" />
 903     <Field type="int" name="methodCount" label="Methods" />
 904     <Field type="int" name="adaptorCount" label="Adaptors" />
 905     <Field type="ulong" contentType="bytes" name="unallocatedCapacity" label="Unallocated" />
 906     <Field type="int" name="fullCount" label="Full Count" />
 907   </Event>
 908 
 909   <Event name="CodeCacheConfiguration" category="Java Virtual Machine, Code Cache" label="Code Cache Configuration" thread="false" period="endChunk" startTime="false">
 910     <Field type="ulong" contentType="bytes" name="initialSize" label="Initial Size" />
 911     <Field type="ulong" contentType="bytes" name="reservedSize" label="Reserved Size" />
 912     <Field type="ulong" contentType="bytes" name="nonNMethodSize" label="Non-nmethod Size" />
 913     <Field type="ulong" contentType="bytes" name="profiledSize" label="Profiled Size" />
 914     <Field type="ulong" contentType="bytes" name="nonProfiledSize" label="Non-profiled Size" />
 915     <Field type="ulong" contentType="bytes" name="expansionSize" label="Expansion size" />
 916     <Field type="ulong" contentType="bytes" name="minBlockLength" label="Minimum Block Length" />
 917     <Field type="ulong" contentType="address" name="startAddress" label="Start Address" />
 918     <Field type="ulong" contentType="address" name="reservedTopAddress" label="Reserved Top" />
 919   </Event>
 920 
 921   <Event name="CodeSweeperStatistics" category="Java Virtual Machine, Code Sweeper" label="Code Sweeper Statistics" thread="false" period="everyChunk" startTime="false">
 922     <Field type="int" name="sweepCount" label="Sweeps" />
 923     <Field type="int" name="methodReclaimedCount" label="Methods Reclaimed" />
 924     <Field type="Tickspan" name="totalSweepTime" label="Time Spent Sweeping" />
 925     <Field type="Tickspan" name="peakFractionTime" label="Peak Time Fraction Sweep" />
 926     <Field type="Tickspan" name="peakSweepTime" label="Peak Time Full Sweep" />
 927   </Event>
 928 
 929   <Event name="CodeSweeperConfiguration" category="Java Virtual Machine, Code Sweeper" label="Code Sweeper Configuration" thread="false" period="endChunk" startTime="false">
 930     <Field type="boolean" name="sweeperEnabled" label="Code Sweeper Enabled" />
 931     <Field type="boolean" name="flushingEnabled" label="Code Cache Flushing Enabled" />
 932     <Field type="ulong" contentType="bytes" name="sweepThreshold" label="Sweep Threshold" />
 933   </Event>
 934 
 935   <Event name="IntFlag" category="Java Virtual Machine, Flag" period="endChunk" label="Int Flag">
 936     <Field type="string" name="name" label="Name" />
 937     <Field type="int" name="value" label="Value" />
 938     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 939   </Event>
 940 
 941   <Event name="UnsignedIntFlag" category="Java Virtual Machine, Flag" period="endChunk" label="Unsigned Int Flag">
 942     <Field type="string" name="name" label="Name" />
 943     <Field type="uint" name="value" label="Value" />
 944     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 945   </Event>
 946 
 947   <Event name="LongFlag" category="Java Virtual Machine, Flag" period="endChunk" label="Long Flag">
 948     <Field type="string" name="name" label="Name" />
 949     <Field type="long" name="value" label="Value" />
 950     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 951   </Event>
 952 
 953   <Event name="UnsignedLongFlag" category="Java Virtual Machine, Flag" period="endChunk" label="Unsigned Long Flag">
 954     <Field type="string" name="name" label="Name" />
 955     <Field type="ulong" name="value" label="Value" />
 956     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 957   </Event>
 958 
 959   <Event name="DoubleFlag" category="Java Virtual Machine, Flag" period="endChunk" label="Double Flag">
 960     <Field type="string" name="name" label="Name" />
 961     <Field type="double" name="value" label="Value" />
 962     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 963   </Event>
 964 
 965   <Event name="BooleanFlag" category="Java Virtual Machine, Flag" period="endChunk" label="Boolean Flag">
 966     <Field type="string" name="name" label="Name" />
 967     <Field type="boolean" name="value" label="Value" />
 968     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 969   </Event>
 970 
 971   <Event name="StringFlag" category="Java Virtual Machine, Flag" period="endChunk" label="String Flag">
 972     <Field type="string" name="name" label="Name" />
 973     <Field type="string" name="value" label="Value" />
 974     <Field type="FlagValueOrigin" name="origin" label="Origin" />
 975   </Event>
 976 
 977   <Event name="ObjectCount" category="Java Virtual Machine, GC, Detailed" startTime="false" period="everyChunk" label="Object Count">
 978     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId" />
 979     <Field type="Class" name="objectClass" label="Object Class" />
 980     <Field type="long" name="count" label="Count" />
 981     <Field type="ulong" contentType="bytes" name="totalSize" label="Total Size" />
 982   </Event>
 983 
 984   <Event name="G1HeapRegionInformation" category="Java Virtual Machine, GC, Detailed" label="G1 Heap Region Information" description="Information about a specific heap region in the G1 GC"
 985     period="everyChunk">
 986     <Field type="uint" name="index" label="Index" />
 987     <Field type="G1HeapRegionType" name="type" label="Type" />
 988     <Field type="ulong" contentType="address" name="start" label="Start" />
 989     <Field type="ulong" contentType="bytes" name="used" label="Used" />
 990   </Event>
 991 
 992   <Event name="GCConfiguration" category="Java Virtual Machine, GC, Configuration" label="GC Configuration" description="The configuration of the garbage collector"
 993     period="endChunk">
 994     <Field type="GCName" name="youngCollector" label="Young Garbage Collector" description="The garbage collector used for the young generation" />
 995     <Field type="GCName" name="oldCollector" label="Old Garbage Collector" description="The garbage collector used for the old generation" />
 996     <Field type="uint" name="parallelGCThreads" label="Parallel GC Threads" description="Number of parallel threads to use for garbage collection" />
 997     <Field type="uint" name="concurrentGCThreads" label="Concurrent GC Threads" description="Number of concurrent threads to use for garbage collection" />
 998     <Field type="boolean" name="usesDynamicGCThreads" label="Uses Dynamic GC Threads" description="Whether a dynamic number of GC threads are used or not" />
 999     <Field type="boolean" name="isExplicitGCConcurrent" label="Concurrent Explicit GC" description="Whether System.gc() is concurrent or not" />
1000     <Field type="boolean" name="isExplicitGCDisabled" label="Disabled Explicit GC" description="Whether System.gc() will cause a garbage collection or not" />
1001     <Field type="long" contentType="millis" name="pauseTarget" label="Pause Target" description="Target for GC pauses" />
1002     <Field type="uint" name="gcTimeRatio" label="GC Time Ratio" description="Target for runtime vs garbage collection time" />
1003   </Event>
1004 
1005   <Event name="GCSurvivorConfiguration" category="Java Virtual Machine, GC, Configuration" label="GC Survivor Configuration"
1006     description="The configuration of the survivors of garbage collection" period="endChunk">
1007     <Field type="ubyte" name="maxTenuringThreshold" label="Maximum Tenuring Threshold" description="Upper limit for the age of how old objects to keep in the survivor area" />
1008     <Field type="ubyte" name="initialTenuringThreshold" label="Initial Tenuring Threshold" description="Initial age limit for how old objects to keep in survivor area" />
1009   </Event>
1010 
1011   <Event name="GCTLABConfiguration" category="Java Virtual Machine, GC, Configuration" label="TLAB Configuration"
1012     description="The configuration of the Thread Local Allocation Buffers (TLABs)" period="endChunk">
1013     <Field type="boolean" name="usesTLABs" label="TLABs Used" description="If Thread Local Allocation Buffers (TLABs) are in use" />
1014     <Field type="ulong" contentType="bytes" name="minTLABSize" label="Minimum TLAB Size" />
1015     <Field type="ulong" contentType="bytes" name="tlabRefillWasteLimit" label="TLAB Refill Waste Limit" />
1016   </Event>
1017 
1018   <Event name="GCHeapConfiguration" category="Java Virtual Machine, GC, Configuration" label="GC Heap Configuration" description="The configuration of the garbage collected heap"
1019     period="endChunk">
1020     <Field type="ulong" contentType="bytes" name="minSize" label="Minimum Heap Size" />
1021     <Field type="ulong" contentType="bytes" name="maxSize" label="Maximum Heap Size" />
1022     <Field type="ulong" contentType="bytes" name="initialSize" label="Initial Heap Size" />
1023     <Field type="boolean" name="usesCompressedOops" label="If Compressed Oops Are Used" description="If compressed Oops (Ordinary Object Pointers) are enabled" />
1024     <Field type="NarrowOopMode" name="compressedOopsMode" label="Compressed Oops Mode" description="The kind of compressed oops being used" />
1025     <Field type="ulong" contentType="bytes" name="objectAlignment" label="Object Alignment" description="Object alignment (in bytes) on the heap" />
1026     <Field type="ubyte" name="heapAddressBits" label="Heap Address Size" description="Heap Address Size (in bits)" />
1027   </Event>
1028 
1029   <Event name="YoungGenerationConfiguration" category="Java Virtual Machine, GC, Configuration" label="Young Generation Configuration"
1030     description="The configuration of the young generation of the garbage collected heap" period="endChunk">
1031     <Field type="ulong" contentType="bytes" name="minSize" label="Minimum Young Generation Size" />
1032     <Field type="ulong" contentType="bytes" name="maxSize" label="Maximum Young Generation Size" />
1033     <Field type="uint" name="newRatio" label="New Ratio" description="The size of the young generation relative to the tenured generation" />
1034   </Event>
1035 
1036   <Event name="ZAllocationStall" category="Java Virtual Machine, GC, Detailed" label="ZGC Allocation Stall" description="Time spent waiting for memory to become available" thread="true">
1037     <Field type="ZPageTypeType" name="type" label="Type" />
1038     <Field type="ulong" contentType="bytes" name="size" label="Size" />
1039   </Event>
1040 
1041   <Event name="ZPageAllocation" category="Java Virtual Machine, GC, Detailed" label="ZGC Page Allocation" description="Allocation of a ZPage" thread="true" stackTrace="true">
1042      <Field type="ZPageTypeType" name="type" label="Type" />
1043      <Field type="ulong" contentType="bytes" name="size" label="Size" />
1044      <Field type="ulong" contentType="bytes" name="flushed" label="Flushed" />
1045      <Field type="ulong" contentType="bytes" name="committed" label="Committed" />
1046      <Field type="uint" name="segments" label="Segments" />
1047      <Field type="boolean" name="nonBlocking" label="Non-blocking" />
1048   </Event>
1049 
1050   <Event name="ZRelocationSet" category="Java Virtual Machine, GC, Detailed" label="ZGC Relocation Set" thread="true">
1051     <Field type="ulong" contentType="bytes" name="total" label="Total" />
1052     <Field type="ulong" contentType="bytes" name="empty" label="Empty" />
1053     <Field type="ulong" contentType="bytes" name="relocate" label="Relocate" />
1054   </Event>
1055 
1056   <Event name="ZRelocationSetGroup" category="Java Virtual Machine, GC, Detailed" label="ZGC Relocation Set Group" thread="true">
1057     <Field type="ZPageTypeType" name="type" label="Type" />
1058     <Field type="ulong" name="pages" label="Pages" />
1059     <Field type="ulong" contentType="bytes" name="total" label="Total" />
1060     <Field type="ulong" contentType="bytes" name="empty" label="Empty" />
1061     <Field type="ulong" contentType="bytes" name="relocate" label="Relocate" />
1062   </Event>
1063 
1064   <Event name="ZStatisticsCounter" category="Java Virtual Machine, GC, Detailed" label="ZGC Statistics Counter" thread="true" experimental="true">
1065     <Field type="ZStatisticsCounterType" name="id" label="Id" />
1066     <Field type="ulong" name="increment" label="Increment" />
1067     <Field type="ulong" name="value" label="Value" />
1068   </Event>
1069 
1070   <Event name="ZStatisticsSampler" category="Java Virtual Machine, GC, Detailed" label="ZGC Statistics Sampler" thread="true" experimental="true">
1071     <Field type="ZStatisticsSamplerType" name="id" label="Id" />
1072     <Field type="ulong" name="value" label="Value" />
1073   </Event>
1074 
1075   <Event name="ZThreadPhase" category="Java Virtual Machine, GC, Detailed" label="ZGC Thread Phase" thread="true" experimental="true">
1076     <Field type="uint" name="gcId" label="GC Identifier" relation="GcId"/>
1077     <Field type="string" name="name" label="Name" />
1078   </Event>
1079 
1080   <Event name="ZUncommit" category="Java Virtual Machine, GC, Detailed" label="ZGC Uncommit" description="Uncommitting of memory" thread="true">
1081     <Field type="ulong" contentType="bytes" name="uncommitted" label="Uncommitted" />
1082   </Event>
1083 
1084   <Event name="ZUnmap" category="Java Virtual Machine, GC, Detailed" label="ZGC Unmap" description="Unmapping of memory" thread="true">
1085     <Field type="ulong" contentType="bytes" name="unmapped" label="Unmapped" />
1086   </Event>
1087 
1088   <Event name="ShenandoahHeapRegionStateChange" category="Java Virtual Machine, GC, Detailed" label="Shenandoah Heap Region State Change" description="Information about a Shenandoah heap region state change"
1089     startTime="false">
1090     <Field type="uint" name="index" label="Index" />
1091     <Field type="ShenandoahHeapRegionState" name="from" label="From" />
1092     <Field type="ShenandoahHeapRegionState" name="to" label="To" />
1093     <Field type="ulong" contentType="address" name="start" label="Start" />
1094     <Field type="ulong" contentType="bytes" name="used" label="Used" />
1095   </Event>
1096 
1097   <Event name="ShenandoahHeapRegionInformation" category="Java Virtual Machine, GC, Detailed" label="Shenandoah Heap Region Information" description="Information about a specific heap region in the Shenandoah GC"
1098     period="everyChunk">
1099     <Field type="uint" name="index" label="Index" />
1100     <Field type="ShenandoahHeapRegionState" name="state" label="State" />
1101     <Field type="ulong" contentType="address" name="start" label="Start" />
1102     <Field type="ulong" contentType="bytes" name="used" label="Used" />
1103   </Event>
1104 
1105   <Type name="ShenandoahHeapRegionState" label="Shenandoah Heap Region State">
1106     <Field type="string" name="state" label="State" />
1107   </Type>
1108 
1109   <Event name="Flush" category="Flight Recorder" label="Flush" thread="false" experimental="true">
1110     <Field type="ulong" name="flushId" label="Flush Identifier" relation="FlushId" />
1111     <Field type="ulong" name="elements" label="Elements Written" />
1112     <Field type="ulong" contentType="bytes" name="size" label="Size Written" />
1113   </Event>
1114 
1115   <Event name="HeapDump" category="Java Virtual Machine, Diagnostics" label="Heap Dump" stackTrace="true" thread="true">
1116     <Field type="string" name="destination" label="Destination" />
1117     <Field type="long" name="size" label="Size" />
1118     <Field type="boolean" name="gcBeforeDump" label="GC Before Dump" />
1119     <Field type="boolean" name="onOutOfMemoryError" label="On Out of Memory Error" />
1120   </Event>
1121 
1122   <Event name="GCLocker" category="Java Virtual Machine, GC, Detailed" label="GC Locker" startTime="true" thread="true" stackTrace="true">
1123     <Field type="uint" name="lockCount" label="Lock Count" description="The number of Java threads in a critical section when the GC locker is started" />
1124     <Field type="uint" name="stallCount" label="Stall Count" description="The number of Java threads stalled by the GC locker" />
1125   </Event>
1126 
1127   <Type name="DeoptimizationReason" label="Deoptimization Reason">
1128     <Field type="string" name="reason" label="Reason" />
1129   </Type>
1130 
1131   <Type name="DeoptimizationAction" label="Deoptimization Action">
1132     <Field type="string" name="action" label="Action" />
1133   </Type>
1134 
1135   <Type name="Bytecode" label="Bytecode Instruction">
1136     <Field type="string" name="bytecode" label="Instruction" />
1137   </Type>
1138 
1139   <Type name="CompilerType" label="Compiler Type">
1140     <Field type="string" name="compiler" label="Compiler" />
1141   </Type>
1142 
1143   <Type name="ZPageTypeType" label="Z Page Type">
1144     <Field type="string" name="type" label="Type" />
1145   </Type>
1146 
1147   <Type name="ZStatisticsCounterType" label="Z Statistics Counter">
1148     <Field type="string" name="counter" label="Counter" />
1149   </Type>
1150 
1151   <Type name="ZStatisticsSamplerType" label="Z Statistics Sampler">
1152     <Field type="string" name="sampler" label="Sampler" />
1153   </Type>
1154 
1155   <Type name="NetworkInterfaceName" label="Network Interface">
1156     <Field type="string" name="networkInterface" label="Network Interface" description="Network Interface Name" />
1157   </Type>
1158 
1159   <Type name="Thread" label="Thread">
1160     <Field type="string" name="osName" label="OS Thread Name" />
1161     <Field type="long" name="osThreadId" label="OS Thread Id" />
1162     <Field type="string" name="javaName" label="Java Thread Name" />
1163     <Field type="long" name="javaThreadId" label="Java Thread Id" />
1164     <Field type="ThreadGroup" name="group" label="Java Thread Group" />
1165     <Field type="boolean" name="isVirtual" label="Virtual Thread" />
1166   </Type>
1167 
1168   <Type name="ThreadGroup" label="Thread Group">
1169     <Field type="ThreadGroup" name="parent" label="Parent" />
1170     <Field type="string" name="name" label="Name" />
1171   </Type>
1172 
1173   <Type name="Class" label="Java Class">
1174     <Field type="ClassLoader" name="classLoader" label="Class Loader" />
1175     <Field type="Symbol" name="name" label="Name" />
1176     <Field type="Package" name="package" label="Package" />
1177     <Field type="int" name="modifiers" label="Access Modifiers" />
1178     <Field type="boolean" name="hidden" label="Hidden" />
1179   </Type>
1180 
1181   <Type name="ClassLoader" label="Java Class Loader">
1182     <Field type="Class" name="type" label="Type" />
1183     <Field type="Symbol" name="name" label="Name" />
1184   </Type>
1185 
1186   <Type name="Method" label="Java Method">
1187     <Field type="Class" name="type" label="Type" />
1188     <Field type="Symbol" name="name" label="Name" />
1189     <Field type="Symbol" name="descriptor" label="Descriptor" />
1190     <Field type="int" name="modifiers" label="Access Modifiers" />
1191     <Field type="boolean" name="hidden" label="Hidden" />
1192   </Type>
1193 
1194   <Type name="Symbol" label="Symbol">
1195     <Field type="string" name="string" label="String" />
1196   </Type>
1197 
1198   <Type name="ThreadState" label="Java Thread State">
1199     <Field type="string" name="name" label="Name" />
1200   </Type>
1201 
1202   <Type name="GCName" label="GC Name">
1203     <Field type="string" name="name" label="Name" />
1204   </Type>
1205 
1206   <Type name="GCCause" label="GC Cause">
1207     <Field type="string" name="cause" label="Cause" />
1208   </Type>
1209 
1210   <Type name="GCWhen" label="GC When">
1211     <Field type="string" name="when" label="When" />
1212   </Type>
1213 
1214   <Type name="G1HeapRegionType" label="G1 Heap Region Type">
1215     <Field type="string" name="type" label="Type" />
1216   </Type>
1217 
1218   <Type name="G1YCType" label="G1 YC Type">
1219     <Field type="string" name="type" label="Type" />
1220   </Type>
1221 
1222   <Type name="GCThresholdUpdater" label="GC Threshold Updater">
1223     <Field type="string" name="updater" label="Updater" />
1224   </Type>
1225 
1226   <Type name="ReferenceType" label="Reference Type">
1227     <Field type="string" name="type" label="Type" />
1228   </Type>
1229 
1230   <Type name="MetadataType" label="Metadata Type">
1231     <Field type="string" name="type" label="Type" />
1232   </Type>
1233 
1234   <Type name="MetaspaceObjectType" label="Metaspace Object Type">
1235     <Field type="string" name="type" label="Type" />
1236   </Type>
1237 
1238   <Type name="NarrowOopMode" label="Narrow Oop Mode">
1239     <Field type="string" name="mode" label="Mode" />
1240   </Type>
1241 
1242   <Type name="VMOperationType" label="VM Operation Type">
1243     <Field type="string" name="type" label="Type" />
1244   </Type>
1245 
1246   <Type name="CompilerPhaseType" label="Compiler Phase Type">
1247     <Field type="string" name="phase" label="Phase" />
1248   </Type>
1249 
1250   <Type name="FlagValueOrigin" label="Flag Value Origin">
1251     <Field type="string" name="origin" label="Origin" />
1252   </Type>
1253 
1254   <Type name="CodeBlobType" label="Code Blob Type">
1255     <Field type="string" name="type" label="Type" />
1256   </Type>
1257 
1258   <Type name="InflateCause" label="Inflation Cause">
1259     <Field type="string" name="cause" label="Cause" />
1260   </Type>
1261 
1262   <Type name="Module" label="Module">
1263     <Field type="Symbol" name="name" label="Name" />
1264     <Field type="Symbol" name="version" label="Version" />
1265     <Field type="Symbol" name="location" label="Location" />
1266     <Field type="ClassLoader" name="classLoader" label="Class Loader" />
1267   </Type>
1268 
1269   <Type name="Package" label="Package">
1270     <Field type="Symbol" name="name" label="Name" />
1271     <Field type="Module" name="module" label="Module" />
1272     <Field type="boolean" name="exported" label="Exported" />
1273   </Type>
1274 
1275   <Type name="StackTrace" label="Stacktrace">
1276     <Field type="boolean" name="truncated" label="Truncated" />
1277     <Field type="StackFrame" array="true" struct="true" name="frames" label="Stack Frames" />
1278   </Type>
1279 
1280   <Type name="FrameType" label="Frame type">
1281     <Field type="string" name="description" label="Description" />
1282   </Type>
1283 
1284   <Type name="OldObjectRootSystem" label="GC Root System">
1285     <Field type="string" name="system" label="System" />
1286   </Type>
1287 
1288   <Type name="OldObjectRootType" label="GC Root Type">
1289     <Field type="string" name="type" label="Type" />
1290   </Type>
1291 
1292   <Type name="OldObjectGcRoot" label="GC Root">
1293     <Field type="string" name="description" label="Root Description" description="Root information" />
1294     <Field type="OldObjectRootSystem" name="system" label="System" description="The subsystem of origin for the root" />
1295     <Field type="OldObjectRootType" name="type" label="Type" description="The root type" />
1296   </Type>
1297 
1298   <Type name="OldObjectArray" label="Old Object Array">
1299     <Field type="int" name="size" label="Array Size" description="Size of array" />
1300     <Field type="int" name="index" label="Index" description="Index in the array" />
1301   </Type>
1302 
1303   <Type name="OldObjectField" label="Old Object Field">
1304     <Field type="string" name="name" label="Field" description="Name of field" />
1305     <Field type="short" name="modifiers" label="Field Modifiers" description="Field modifiers" />
1306   </Type>
1307 
1308   <Type name="OldObject" label="Old Object">
1309     <Field type="ulong" contentType="address" name="address" label="Memory Address" />
1310     <Field type="Class" name="type" label="Java Class" />
1311     <Field type="string" name="description" label="Object Description" description="Object description" />
1312     <Field type="Reference" name="referrer" label="Referrer Object" description="Object referencing this object" />
1313   </Type>
1314 
1315   <Type name="Reference" label="Reference">
1316     <Field type="OldObjectArray" name="array" label="Array Information" description="Array or null if it is not an array" />
1317     <Field type="OldObjectField" name="field" label="Field Information" description="Field or null if it is an array" />
1318     <Field type="OldObject" name="object" label="Object" description="Object holder for this reference" />
1319     <Field type="int" name="skip" label="Skip Value" description="The object is this many hops away" />
1320   </Type>
1321 
1322   <Type name="StackFrame">
1323     <Field type="Method" name="method" label="Java Method" />
1324     <Field type="int" name="lineNumber" label="Line Number" />
1325     <Field type="int" name="bytecodeIndex" label="Bytecode Index" />
1326     <Field type="FrameType" name="type" label="Frame Type" />
1327   </Type>
1328 
1329   <Type name="ChunkHeader" label="Chunk Header">
1330     <Field type="byte" array="true" name="payload" label="Payload" />
1331   </Type>
1332 
1333   <Relation name="JavaMonitorAddress"/>
1334   <Relation name="SafepointId"/>
1335   <Relation name="GcId"/>
1336   <Relation name="CompileId" />
1337   <Relation name="SweepId"/>
1338   <Relation name="FlushId"/>
1339   <Relation name="ClassRedefinitionId"/>
1340 
1341   <XmlType name="Package" parameterType="const PackageEntry*" fieldType="const PackageEntry*"/>
1342   <XmlType name="Class" javaType="java.lang.Class" parameterType="const Klass*" fieldType="const Klass*"/>
1343   <XmlType name="Module"  parameterType="const ModuleEntry*" fieldType="const ModuleEntry*"/>
1344   <XmlType name="ClassLoader" parameterType="const ClassLoaderData*" fieldType="const ClassLoaderData*"/>
1345   <XmlType name="Method" parameterType="const Method*" fieldType="const Method*"/>
1346   <XmlType name="Thread" javaType="java.lang.Thread" parameterType="u8" fieldType="u8"/>
1347   <XmlType name="Tickspan" contentType="tickspan" unsigned="true" javaType="long" parameterType="const Tickspan&amp;" fieldType="Tickspan"/>
1348   <XmlType name="Ticks" contentType="tickstamp" unsigned="true" javaType="long" parameterType="const Ticks&amp;" fieldType="Ticks"/>
1349   <XmlType name="ulong" javaType="long" unsigned="true" parameterType="u8" fieldType="u8"/>
1350   <XmlType name="uint" javaType="int" unsigned="true" parameterType="unsigned" fieldType="unsigned"/>
1351   <XmlType name="ushort" javaType="short" unsigned="true" parameterType="u2" fieldType="u2"/>
1352   <XmlType name="ubyte" javaType="byte" unsigned="true" parameterType="u1" fieldType="u1"/>
1353   <XmlType name="long" javaType="long" parameterType="s8" fieldType="s8"/>
1354   <XmlType name="int" javaType="int" parameterType="s4" fieldType="s4"/>
1355   <XmlType name="short" javaType="short" parameterType="s2" fieldType="s2"/>
1356   <XmlType name="byte" javaType="byte"  parameterType="s1" fieldType="s1"/>
1357   <XmlType name="double" javaType="double" parameterType="double" fieldType="double"/>
1358   <XmlType name="float" javaType="float"  parameterType="float" fieldType="float"/>
1359   <XmlType name="boolean" javaType="boolean" parameterType="bool" fieldType="bool"/>
1360   <XmlType name="char" javaType="char" parameterType="char" fieldType="char"/>
1361   <XmlType name="string" javaType="java.lang.String" parameterType="const char*" fieldType="const char*"/>
1362   <XmlType name="StackTrace" javaType="jdk.types.StackTrace" parameterType="u8" fieldType="u8"/>
1363 
1364   <XmlContentType name="bytes" annotation="jdk.jfr.DataAmount(BYTES)" />
1365   <XmlContentType name="tickstamp" annotation="jdk.jfr.Timestamp(TICKS)" />
1366   <XmlContentType name="epochmillis" annotation="jdk.jfr.Timestamp(MILLISECONDS_SINCE_EPOCH)" />
1367   <XmlContentType name="tickspan" annotation="jdk.jfr.Timespan(TICKS)" />
1368   <XmlContentType name="address" annotation="jdk.jfr.MemoryAddress" />
1369   <XmlContentType name="percentage" annotation="jdk.jfr.Percentage" />
1370   <XmlContentType name="millis" annotation="jdk.jfr.Timespan(MILLISECONDS)" />
1371   <XmlContentType name="nanos" annotation="jdk.jfr.Timespan(NANOSECONDS)" />
1372   <XmlContentType name="hertz" annotation="jdk.jfr.Frequency" />
1373   <XmlContentType name="bytes-per-second" annotation="jdk.jfr.DataAmount(BYTES), jdk.jfr.Frequency" />
1374   <XmlContentType name="bits-per-second" annotation="jdk.jfr.DataAmount(BITS), jdk.jfr.Frequency" />
1375 
1376 </Metadata>