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test/serviceability/tmtools/jstat/GcCauseTest03.java

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  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  * @test
  26  * @summary Test checks output displayed with jstat -gccause.
  27  *          Test scenario:
  28  *          test forces debuggee application call System.gc(), runs jstat and checks that
  29  *          cause of last garbage collection displayed by jstat (LGCC) is 'System.gc()'.
  30  * @modules java.base/jdk.internal.misc
  31  * @library /test/lib/share/classes
  32  * @library ../share
  33  * @build common.*
  34  * @build utils.*
  35  *
  36  * @run main/othervm -XX:+UsePerfData -Xmx128M -XX:MaxMetaspaceSize=128M GcCauseTest03
  37  */
  38 import utils.*;
  39 
  40 public class GcCauseTest03 {
  41 
  42     private final static float targetMemoryUsagePercent = 0.7f;
  43 
  44     public static void main(String[] args) throws Exception {
  45 
  46         // We will be running "jstat -gc" tool
  47         JstatGcCauseTool jstatGcTool = new JstatGcCauseTool(ProcessHandle.current().getPid());
  48 
  49         System.gc();
  50 
  51         // Run once and get the  results asserting that they are reasonable
  52         JstatGcCauseResults measurement = jstatGcTool.measure();
  53         measurement.assertConsistency();
  54 
  55         if (measurement.valueExists("LGCC")) {


  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  * @test
  26  * @summary Test checks output displayed with jstat -gccause.
  27  *          Test scenario:
  28  *          test forces debuggee application call System.gc(), runs jstat and checks that
  29  *          cause of last garbage collection displayed by jstat (LGCC) is 'System.gc()'.
  30  * @modules java.base/jdk.internal.misc
  31  * @library /test/lib
  32  * @library ../share



  33  * @run main/othervm -XX:+UsePerfData -Xmx128M -XX:MaxMetaspaceSize=128M GcCauseTest03
  34  */
  35 import utils.*;
  36 
  37 public class GcCauseTest03 {
  38 
  39     private final static float targetMemoryUsagePercent = 0.7f;
  40 
  41     public static void main(String[] args) throws Exception {
  42 
  43         // We will be running "jstat -gc" tool
  44         JstatGcCauseTool jstatGcTool = new JstatGcCauseTool(ProcessHandle.current().getPid());
  45 
  46         System.gc();
  47 
  48         // Run once and get the  results asserting that they are reasonable
  49         JstatGcCauseResults measurement = jstatGcTool.measure();
  50         measurement.assertConsistency();
  51 
  52         if (measurement.valueExists("LGCC")) {
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