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This commit is contained in:
Jon Masamitsu 2008-07-28 15:30:23 -07:00
commit b8633a3b01
46 changed files with 1401 additions and 256 deletions
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29
hotspot/src/share/vm/memory/genCollectedHeap.cpp
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@ -465,6 +465,11 @@ void GenCollectedHeap::do_collection(bool full,
_gens[i]->stat_record()->invocations++;
_gens[i]->stat_record()->accumulated_time.start();
// Must be done anew before each collection because
// a previous collection will do mangling and will
// change top of some spaces.
record_gen_tops_before_GC();
if (PrintGC && Verbose) {
gclog_or_tty->print("level=%d invoke=%d size=" SIZE_FORMAT,
i,
@ -1058,6 +1063,12 @@ ScratchBlock* GenCollectedHeap::gather_scratch(Generation* requestor,
return res;
}
void GenCollectedHeap::release_scratch() {
for (int i = 0; i < _n_gens; i++) {
_gens[i]->reset_scratch();
}
}
size_t GenCollectedHeap::large_typearray_limit() {
return gen_policy()->large_typearray_limit();
}
@ -1285,6 +1296,24 @@ void GenCollectedHeap::gc_epilogue(bool full) {
always_do_update_barrier = UseConcMarkSweepGC;
};
#ifndef PRODUCT
class GenGCSaveTopsBeforeGCClosure: public GenCollectedHeap::GenClosure {
private:
public:
void do_generation(Generation* gen) {
gen->record_spaces_top();
}
};
void GenCollectedHeap::record_gen_tops_before_GC() {
if (ZapUnusedHeapArea) {
GenGCSaveTopsBeforeGCClosure blk;
generation_iterate(&blk, false); // not old-to-young.
perm_gen()->record_spaces_top();
}
}
#endif // not PRODUCT
class GenEnsureParsabilityClosure: public GenCollectedHeap::GenClosure {
public:
void do_generation(Generation* gen) {