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6990419: CMS Remaining work for 6572569: consistently skewed work distribution in (long) re-mark pauses

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Reviewed-by: rasbold, tschatzl, jmasa
This commit is contained in:
Hiroshi Yamauchi 2013-07-23 09:49:11 -07:00 • committed by Jon Masamitsu
parent 0c344951cc
commit 5c9dbad612
5 changed files with 101 additions and 4 deletions
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11
hotspot/src/share/vm/memory/defNewGeneration.cpp
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@ -1033,6 +1033,9 @@ HeapWord* DefNewGeneration::allocate(size_t word_size,
// have to use it here, as well.
HeapWord* result = eden()->par_allocate(word_size);
if (result != NULL) {
if (CMSEdenChunksRecordAlways && _next_gen != NULL) {
_next_gen->sample_eden_chunk();
}
return result;
}
do {
@ -1063,13 +1066,19 @@ HeapWord* DefNewGeneration::allocate(size_t word_size,
// circular dependency at compile time.
if (result == NULL) {
result = allocate_from_space(word_size);
} else if (CMSEdenChunksRecordAlways && _next_gen != NULL) {
_next_gen->sample_eden_chunk();
}
return result;
}
HeapWord* DefNewGeneration::par_allocate(size_t word_size,
bool is_tlab) {
return eden()->par_allocate(word_size);
HeapWord* res = eden()->par_allocate(word_size);
if (CMSEdenChunksRecordAlways && _next_gen != NULL) {
_next_gen->sample_eden_chunk();
}
return res;
}
void DefNewGeneration::gc_prologue(bool full) {