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8163413: gc/metaspace/TestMetaspacePerfCounters failure

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Reviewed-by: ehelin, dfazunen
This commit is contained in:
Stefan Johansson 2016-08-22 16:48:04 +02:00
parent 11852cb5fa
commit abc62e705c
1 changed files with 34 additions and 5 deletions
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39
hotspot/test/gc/metaspace/TestMetaspacePerfCounters.java
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@ -21,6 +21,7 @@
* questions.
*/
import java.lang.management.GarbageCollectorMXBean;
import java.util.List;
import java.util.ArrayList;
@ -28,6 +29,8 @@ import jdk.test.lib.ByteCodeLoader;
import jdk.test.lib.InMemoryJavaCompiler;
import jdk.test.lib.Platform;
import sun.management.ManagementFactoryHelper;
import static jdk.test.lib.Asserts.*;
/* @test TestMetaspacePerfCounters
@ -38,7 +41,7 @@ import static jdk.test.lib.Asserts.*;
* space exists and works.
* @modules java.base/jdk.internal.misc
* java.compiler
* java.management
* java.management/sun.management
* jdk.jvmstat/sun.jvmstat.monitor
* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseSerialGC TestMetaspacePerfCounters
* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-UseCompressedOops -XX:-UseCompressedClassPointers -XX:+UsePerfData -XX:+UseParallelGC -XX:+UseParallelOldGC TestMetaspacePerfCounters
@ -51,6 +54,7 @@ import static jdk.test.lib.Asserts.*;
public class TestMetaspacePerfCounters {
public static Class fooClass = null;
private static final String[] counterNames = {"minCapacity", "maxCapacity", "capacity", "used"};
private static final List<GarbageCollectorMXBean> gcBeans = ManagementFactoryHelper.getGarbageCollectorMXBeans();
public static void main(String[] args) throws Exception {
String metaspace = "sun.gc.metaspace";
@ -68,10 +72,27 @@ public class TestMetaspacePerfCounters {
}
private static void checkPerfCounters(String ns) throws Exception {
long minCapacity = getMinCapacity(ns);
long maxCapacity = getMaxCapacity(ns);
long capacity = getCapacity(ns);
long used = getUsed(ns);
long gcCountBefore;
long gcCountAfter;
long minCapacity;
long maxCapacity;
long capacity;
long used;
// The perf counter values are updated during GC and to be able to
// do the assertions below we need to ensure that the values are from
// the same GC cycle.
do {
gcCountBefore = currentGCCount();
minCapacity = getMinCapacity(ns);
maxCapacity = getMaxCapacity(ns);
capacity = getCapacity(ns);
used = getUsed(ns);
gcCountAfter = currentGCCount();
assertGTE(gcCountAfter, gcCountBefore);
} while(gcCountAfter > gcCountBefore);
assertGTE(minCapacity, 0L);
assertGTE(used, minCapacity);
@ -130,4 +151,12 @@ public class TestMetaspacePerfCounters {
private static long getUsed(String ns) throws Exception {
return PerfCounters.findByName(ns + ".used").longValue();
}
private static long currentGCCount() {
long gcCount = 0;
for (GarbageCollectorMXBean bean : gcBeans) {
gcCount += bean.getCollectionCount();
}
return gcCount;
}
}