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6679764: enable parallel compaction by default

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Reviewed-by: phh, jmasa
This commit is contained in:
John Coomes 2012-02-02 16:05:17 -08:00
parent 85e4d13987
commit 39ab213a0a
1 changed files with 4 additions and 3 deletions
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7
hotspot/src/share/vm/runtime/arguments.cpp
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@ -1400,10 +1400,11 @@ void Arguments::set_ergonomics_flags() {
void Arguments::set_parallel_gc_flags() {
assert(UseParallelGC || UseParallelOldGC, "Error");
// If parallel old was requested, automatically enable parallel scavenge.
if (UseParallelOldGC && !UseParallelGC && FLAG_IS_DEFAULT(UseParallelGC)) {
FLAG_SET_DEFAULT(UseParallelGC, true);
// Enable ParallelOld unless it was explicitly disabled (cmd line or rc file).
if (FLAG_IS_DEFAULT(UseParallelOldGC)) {
FLAG_SET_DEFAULT(UseParallelOldGC, true);
}
FLAG_SET_DEFAULT(UseParallelGC, true);
// If no heap maximum was requested explicitly, use some reasonable fraction
// of the physical memory, up to a maximum of 1GB.