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6944166: G1: explicit GCs are not always handled correctly

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G1 was not handling explicit GCs correctly in many ways. It does now. See the CR for the list of improvements contained in this changeset.

Reviewed-by: iveresov, ysr, johnc
This commit is contained in:
Antonios Printezis 2010-06-28 14:13:17 -04:00
parent 968deb7658
commit dfc84e8c89
12 changed files with 291 additions and 71 deletions
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2
hotspot/src/share/vm/runtime/mutexLocker.cpp
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@ -159,6 +159,8 @@ void mutex_init() {
def(STS_init_lock , Mutex, leaf, true );
if (UseConcMarkSweepGC) {
def(iCMS_lock , Monitor, special, true ); // CMS incremental mode start/stop notification
}
if (UseConcMarkSweepGC || UseG1GC) {
def(FullGCCount_lock , Monitor, leaf, true ); // in support of ExplicitGCInvokesConcurrent
}
if (UseG1GC) {