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test/hotspot/jtreg/serviceability/tmtools/jstat/GcCauseTest03.java

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  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  * @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  * @requires vm.gc != "Z"
  31  * @modules java.base/jdk.internal.misc
  32  * @library /test/lib
  33  * @library ../share
  34  * @run main/othervm -XX:+UsePerfData -Xmx128M -XX:MaxMetaspaceSize=128M GcCauseTest03
  35  */
  36 import utils.*;
  37 
  38 public class GcCauseTest03 {
  39 
  40     private final static float targetMemoryUsagePercent = 0.7f;
  41 
  42     public static void main(String[] args) throws Exception {
  43 
  44         // We will be running "jstat -gc" tool
  45         JstatGcCauseTool jstatGcTool = new JstatGcCauseTool(ProcessHandle.current().pid());
  46 
  47         System.gc();
  48 
  49         // Run once and get the  results asserting that they are reasonable
  50         JstatGcCauseResults measurement = jstatGcTool.measure();


  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  * @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  * @requires vm.gc != "Z" & vm.gc != "Shenandoah"
  31  * @modules java.base/jdk.internal.misc
  32  * @library /test/lib
  33  * @library ../share
  34  * @run main/othervm -XX:+UsePerfData -Xmx128M -XX:MaxMetaspaceSize=128M GcCauseTest03
  35  */
  36 import utils.*;
  37 
  38 public class GcCauseTest03 {
  39 
  40     private final static float targetMemoryUsagePercent = 0.7f;
  41 
  42     public static void main(String[] args) throws Exception {
  43 
  44         // We will be running "jstat -gc" tool
  45         JstatGcCauseTool jstatGcTool = new JstatGcCauseTool(ProcessHandle.current().pid());
  46 
  47         System.gc();
  48 
  49         // Run once and get the  results asserting that they are reasonable
  50         JstatGcCauseResults measurement = jstatGcTool.measure();
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