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8058354: SPECjvm2008-Derby -2.7% performance regression on Solaris-X64 starting with 9-b29

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Allow use of large pages for auxiliary data structures in G1. Clean up existing interfaces.

Reviewed-by: jmasa, pliden, stefank
This commit is contained in:
Thomas Schatzl 2015-04-07 10:53:51 +02:00
parent 6aa9bef5d3
commit 0a0a22f7ea
12 changed files with 407 additions and 131 deletions
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5
hotspot/src/share/vm/prims/whitebox.cpp
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@ -89,6 +89,10 @@ WB_ENTRY(jint, WB_GetVMPageSize(JNIEnv* env, jobject o))
return os::vm_page_size();
WB_END
WB_ENTRY(jlong, WB_GetVMLargePageSize(JNIEnv* env, jobject o))
return os::large_page_size();
WB_END
class WBIsKlassAliveClosure : public KlassClosure {
Symbol* _name;
bool _found;
@ -1301,6 +1305,7 @@ static JNINativeMethod methods[] = {
{CC"isObjectInOldGen0", CC"(Ljava/lang/Object;)Z", (void*)&WB_isObjectInOldGen },
{CC"getHeapOopSize", CC"()I", (void*)&WB_GetHeapOopSize },
{CC"getVMPageSize", CC"()I", (void*)&WB_GetVMPageSize },
{CC"getVMLargePageSize", CC"()J", (void*)&WB_GetVMLargePageSize},
{CC"isClassAlive0", CC"(Ljava/lang/String;)Z", (void*)&WB_IsClassAlive },
{CC"parseCommandLine0",
CC"(Ljava/lang/String;C[Lsun/hotspot/parser/DiagnosticCommand;)[Ljava/lang/Object;",