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6711316: Open source the Garbage-First garbage collector

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First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
This commit is contained in:
Y. Srinivas Ramakrishna 2008-06-05 15:57:56 -07:00
parent 39463bb3fc
commit 18f3386a98
215 changed files with 36088 additions and 1249 deletions
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23
hotspot/src/share/vm/memory/universe.cpp
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@ -734,6 +734,15 @@ jint Universe::initialize_heap() {
fatal("UseParallelGC not supported in java kernel vm.");
#endif // SERIALGC
} else if (UseG1GC) {
#ifndef SERIALGC
G1CollectorPolicy* g1p = new G1CollectorPolicy_BestRegionsFirst();
G1CollectedHeap* g1h = new G1CollectedHeap(g1p);
Universe::_collectedHeap = g1h;
#else // SERIALGC
fatal("UseG1GC not supported in java kernel vm.");
#endif // SERIALGC
} else {
GenCollectorPolicy *gc_policy;
@ -933,7 +942,10 @@ bool universe_post_init() {
// This needs to be done before the first scavenge/gc, since
// it's an input to soft ref clearing policy.
Universe::update_heap_info_at_gc();
{
MutexLocker x(Heap_lock);
Universe::update_heap_info_at_gc();
}
// ("weak") refs processing infrastructure initialization
Universe::heap()->post_initialize();
@ -1189,10 +1201,11 @@ uintptr_t Universe::verify_klass_mask() {
// ???: What if a CollectedHeap doesn't have a permanent generation?
ShouldNotReachHere();
break;
case CollectedHeap::GenCollectedHeap: {
GenCollectedHeap* gch = (GenCollectedHeap*) Universe::heap();
permanent_reserved = gch->perm_gen()->reserved();
break;
case CollectedHeap::GenCollectedHeap:
case CollectedHeap::G1CollectedHeap: {
SharedHeap* sh = (SharedHeap*) Universe::heap();
permanent_reserved = sh->perm_gen()->reserved();
break;
}
#ifndef SERIALGC
case CollectedHeap::ParallelScavengeHeap: {