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8026752: Cancel MetaspaceGC request for a CMS concurrent collection after GC

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Reviewed-by: sjohanss, sangheki
This commit is contained in:
Jon Masamitsu 2016-06-10 09:22:09 -07:00
parent 96627b1708
commit 35ba62637e
3 changed files with 78 additions and 0 deletions
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5
hotspot/src/share/vm/prims/whitebox.cpp
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@ -1433,6 +1433,10 @@ WB_ENTRY(jlong, WB_MetaspaceCapacityUntilGC(JNIEnv* env, jobject wb))
return (jlong) MetaspaceGC::capacity_until_GC();
WB_END
WB_ENTRY(jboolean, WB_MetaspaceShouldConcurrentCollect(JNIEnv* env, jobject wb))
return MetaspaceGC::should_concurrent_collect();
WB_END
WB_ENTRY(void, WB_AssertMatchingSafepointCalls(JNIEnv* env, jobject o, jboolean mutexSafepointValue, jboolean attemptedNoSafepointValue))
Monitor::SafepointCheckRequired sfpt_check_required = mutexSafepointValue ?
@ -1813,6 +1817,7 @@ static JNINativeMethod methods[] = {
CC"(Ljava/lang/ClassLoader;JJ)V", (void*)&WB_FreeMetaspace },
{CC"incMetaspaceCapacityUntilGC", CC"(J)J", (void*)&WB_IncMetaspaceCapacityUntilGC },
{CC"metaspaceCapacityUntilGC", CC"()J", (void*)&WB_MetaspaceCapacityUntilGC },
{CC"metaspaceShouldConcurrentCollect", CC"()Z", (void*)&WB_MetaspaceShouldConcurrentCollect },
{CC"getCPUFeatures", CC"()Ljava/lang/String;", (void*)&WB_GetCPUFeatures },
{CC"getNMethod0", CC"(Ljava/lang/reflect/Executable;Z)[Ljava/lang/Object;",
(void*)&WB_GetNMethod },