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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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src/hotspot/share/runtime/mutexLocker.hpp
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@ -77,8 +77,6 @@ extern Monitor* CGC_lock; // used for coordination betwee
// fore- & background GC threads.
extern Monitor* STS_lock; // used for joining/leaving SuspendibleThreadSet.
extern Monitor* FullGCCount_lock; // in support of "concurrent" full gc
extern Monitor* SATB_Q_CBL_mon; // Protects SATB Q
// completed buffer queue.
extern Monitor* DirtyCardQ_CBL_mon; // Protects dirty card Q
// completed buffer queue.
extern Mutex* Shared_DirtyCardQ_lock; // Lock protecting dirty card