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test/hotspot/jtreg/serviceability/tmtools/jstat/GcNewTest.java

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  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 import utils.*;
  25 /*
  26  * @test
  27  * @summary Test checks output displayed with jstat -gcnew.
  28  *          Test scenario:
  29  *          test several times provokes garbage collection in the debuggee application and after each garbage
  30  *          collection runs jstat. jstat should show that after garbage collection number of GC events and garbage
  31  *          collection time increase.
  32  * @requires vm.gc != "Z"
  33  * @modules java.base/jdk.internal.misc
  34  * @library /test/lib
  35  * @library ../share
  36  * @run main/othervm -XX:+UsePerfData -Xmx128M GcNewTest
  37  */
  38 
  39 public class GcNewTest {
  40 
  41     public static void main(String[] args) throws Exception {
  42 
  43         // We will be running "jstat -gc" tool
  44         JstatGcNewTool jstatGcTool = new JstatGcNewTool(ProcessHandle.current().pid());
  45 
  46         // Run once and get the  results asserting that they are reasonable
  47         JstatGcNewResults measurement1 = jstatGcTool.measure();
  48         measurement1.assertConsistency();
  49 
  50         GcProvoker gcProvoker = new GcProvoker();
  51 
  52         // Provoke GC and run the tool again




  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 import utils.*;
  25 /*
  26  * @test
  27  * @summary Test checks output displayed with jstat -gcnew.
  28  *          Test scenario:
  29  *          test several times provokes garbage collection in the debuggee application and after each garbage
  30  *          collection runs jstat. jstat should show that after garbage collection number of GC events and garbage
  31  *          collection time increase.
  32  * @requires vm.gc != "Z" & vm.gc != "Shenandoah"
  33  * @modules java.base/jdk.internal.misc
  34  * @library /test/lib
  35  * @library ../share
  36  * @run main/othervm -XX:+UsePerfData -Xmx128M GcNewTest
  37  */
  38 
  39 public class GcNewTest {
  40 
  41     public static void main(String[] args) throws Exception {
  42 
  43         // We will be running "jstat -gc" tool
  44         JstatGcNewTool jstatGcTool = new JstatGcNewTool(ProcessHandle.current().pid());
  45 
  46         // Run once and get the  results asserting that they are reasonable
  47         JstatGcNewResults measurement1 = jstatGcTool.measure();
  48         measurement1.assertConsistency();
  49 
  50         GcProvoker gcProvoker = new GcProvoker();
  51 
  52         // Provoke GC and run the tool again


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