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src/share/vm/memory/metaspaceTracer.cpp

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   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/classLoaderData.hpp"

  27 #include "memory/metaspaceTracer.hpp"
  28 #include "oops/oop.inline.hpp"
  29 #include "trace/tracing.hpp"
  30 #include "trace/traceBackend.hpp"
  31 
  32 void MetaspaceTracer::report_gc_threshold(size_t old_val,
  33                                           size_t new_val,
  34                                           MetaspaceGCThresholdUpdater::Type updater) const {
  35   EventMetaspaceGCThreshold event;
  36   if (event.should_commit()) {
  37     event.set_oldValue(old_val);
  38     event.set_newValue(new_val);
  39     event.set_updater((u1)updater);
  40     event.commit();
  41   }
  42 }
  43 
  44 void MetaspaceTracer::report_metaspace_allocation_failure(ClassLoaderData *cld,
  45                                                           size_t word_size,
  46                                                           MetaspaceObj::Type objtype,
  47                                                           Metaspace::MetadataType mdtype) const {
  48   send_allocation_failure_event<EventMetaspaceAllocationFailure>(cld, word_size, objtype, mdtype);
  49 }
  50 
  51 void MetaspaceTracer::report_metadata_oom(ClassLoaderData *cld,
  52                                          size_t word_size,
  53                                          MetaspaceObj::Type objtype,
  54                                          Metaspace::MetadataType mdtype) const {
  55   send_allocation_failure_event<EventMetaspaceOOM>(cld, word_size, objtype, mdtype);
  56 }
  57 
  58 template <typename E>
  59 void MetaspaceTracer::send_allocation_failure_event(ClassLoaderData *cld,
  60                                                     size_t word_size,
  61                                                     MetaspaceObj::Type objtype,
  62                                                     Metaspace::MetadataType mdtype) const {
  63   E event;
  64   if (event.should_commit()) {
  65     if (cld->is_anonymous()) {
  66       event.set_classLoader(NULL);
  67       event.set_anonymousClassLoader(true);
  68     } else {
  69       if (cld->is_the_null_class_loader_data()) {
  70         event.set_classLoader((Klass*) NULL);
  71       } else {
  72         event.set_classLoader(cld->class_loader()->klass());
  73       }
  74       event.set_anonymousClassLoader(false);
  75     }
  76 
  77     event.set_size(word_size * BytesPerWord);
  78     event.set_metadataType((u1) mdtype);
  79     event.set_metaspaceObjectType((u1) objtype);
  80     event.commit();
  81   }
  82 }


   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "classfile/classLoaderData.hpp"
  27 #include "jfr/jfrEvents.hpp"
  28 #include "memory/metaspaceTracer.hpp"
  29 #include "oops/oop.inline.hpp"


  30 
  31 void MetaspaceTracer::report_gc_threshold(size_t old_val,
  32                                           size_t new_val,
  33                                           MetaspaceGCThresholdUpdater::Type updater) const {
  34   EventMetaspaceGCThreshold event;
  35   if (event.should_commit()) {
  36     event.set_oldValue(old_val);
  37     event.set_newValue(new_val);
  38     event.set_updater((u1)updater);
  39     event.commit();
  40   }
  41 }
  42 
  43 void MetaspaceTracer::report_metaspace_allocation_failure(ClassLoaderData *cld,
  44                                                           size_t word_size,
  45                                                           MetaspaceObj::Type objtype,
  46                                                           Metaspace::MetadataType mdtype) const {
  47   send_allocation_failure_event<EventMetaspaceAllocationFailure>(cld, word_size, objtype, mdtype);
  48 }
  49 
  50 void MetaspaceTracer::report_metadata_oom(ClassLoaderData *cld,
  51                                          size_t word_size,
  52                                          MetaspaceObj::Type objtype,
  53                                          Metaspace::MetadataType mdtype) const {
  54   send_allocation_failure_event<EventMetaspaceOOM>(cld, word_size, objtype, mdtype);
  55 }
  56 
  57 template <typename E>
  58 void MetaspaceTracer::send_allocation_failure_event(ClassLoaderData *cld,
  59                                                     size_t word_size,
  60                                                     MetaspaceObj::Type objtype,
  61                                                     Metaspace::MetadataType mdtype) const {
  62   E event;
  63   if (event.should_commit()) {
  64     if (cld->is_anonymous()) {
  65       event.set_classLoader(NULL);
  66       event.set_anonymousClassLoader(true);
  67     } else {
  68       if (cld->is_the_null_class_loader_data()) {
  69         event.set_classLoader(NULL);
  70       } else {
  71         event.set_classLoader(cld);
  72       }
  73       event.set_anonymousClassLoader(false);
  74     }
  75 
  76     event.set_size(word_size * BytesPerWord);
  77     event.set_metadataType((u1) mdtype);
  78     event.set_metaspaceObjectType((u1) objtype);
  79     event.commit();
  80   }
  81 }
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