Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/g1OopClosures.hpp @ 4837:eff609af17d7
7127706: G1: re-enable survivors during the initial-mark pause
Summary: Re-enable survivors during the initial-mark pause. Afterwards, the concurrent marking threads have to scan them and mark everything reachable from them. The next GC will have to wait for the survivors to be scanned.
Reviewed-by: brutisso, johnc
| author | tonyp |
|---|---|
| date | Wed, 25 Jan 2012 12:58:23 -0500 |
| parents | d30fa85f9994 |
| children | b4ebad3520bb |
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--- a/src/share/vm/gc_implementation/g1/g1OopClosures.hpp Thu Jan 12 00:06:47 2012 -0800 +++ b/src/share/vm/gc_implementation/g1/g1OopClosures.hpp Wed Jan 25 12:58:23 2012 -0500 @@ -220,6 +220,7 @@ // Closure for iterating over object fields during concurrent marking class G1CMOopClosure : public OopClosure { +private: G1CollectedHeap* _g1h; ConcurrentMark* _cm; CMTask* _task; @@ -230,4 +231,19 @@ virtual void do_oop(narrowOop* p) { do_oop_nv(p); } }; +// Closure to scan the root regions during concurrent marking +class G1RootRegionScanClosure : public OopClosure { +private: + G1CollectedHeap* _g1h; + ConcurrentMark* _cm; + uint _worker_id; +public: + G1RootRegionScanClosure(G1CollectedHeap* g1h, ConcurrentMark* cm, + uint worker_id) : + _g1h(g1h), _cm(cm), _worker_id(worker_id) { } + template <class T> void do_oop_nv(T* p); + virtual void do_oop( oop* p) { do_oop_nv(p); } + virtual void do_oop(narrowOop* p) { do_oop_nv(p); } +}; + #endif // SHARE_VM_GC_IMPLEMENTATION_G1_G1OOPCLOSURES_HPP