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8225255: Make SATB qset lock-free

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Refactor PtrQueueSet, use lock-free stack for SATB completed buffers

Reviewed-by: tschatzl, shade
This commit is contained in:
Kim Barrett 2019-06-26 13:18:38 -04:00
parent b6c6f3ce43
commit 805258f3a9
15 changed files with 317 additions and 216 deletions
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5
src/hotspot/share/runtime/mutexLocker.cpp
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@ -82,7 +82,6 @@ Mutex* NonJavaThreadsListSync_lock = NULL;
Monitor* CGC_lock = NULL;
Monitor* STS_lock = NULL;
Monitor* FullGCCount_lock = NULL;
Monitor* SATB_Q_CBL_mon = NULL;
Monitor* DirtyCardQ_CBL_mon = NULL;
Mutex* Shared_DirtyCardQ_lock = NULL;
Mutex* MarkStackFreeList_lock = NULL;
@ -228,8 +227,6 @@ void mutex_init() {
def(FullGCCount_lock , PaddedMonitor, leaf, true, Monitor::_safepoint_check_never); // in support of ExplicitGCInvokesConcurrent
if (UseG1GC) {
def(SATB_Q_CBL_mon , PaddedMonitor, access, true, Monitor::_safepoint_check_never);
def(DirtyCardQ_CBL_mon , PaddedMonitor, access, true, Monitor::_safepoint_check_never);
def(Shared_DirtyCardQ_lock , PaddedMutex , access + 1, true, Monitor::_safepoint_check_never);
@ -246,8 +243,6 @@ void mutex_init() {
def(MonitoringSupport_lock , PaddedMutex , native , true, Monitor::_safepoint_check_never); // used for serviceability monitoring support
}
if (UseShenandoahGC) {
def(SATB_Q_CBL_mon , PaddedMonitor, access, true, Monitor::_safepoint_check_never);
def(StringDedupQueue_lock , PaddedMonitor, leaf, true, Monitor::_safepoint_check_never);
def(StringDedupTable_lock , PaddedMutex , leaf, true, Monitor::_safepoint_check_never);
}