Mercurial > hg > graal-jvmci-8
diff src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp @ 17755:96b1c2e06e25
8027295: Free CSet takes ~50% of young pause time
Summary: Improve fast card cache iteration and avoid taking locks when freeing the collection set.
Reviewed-by: brutisso
author | tschatzl |
---|---|
date | Mon, 24 Mar 2014 15:30:36 +0100 |
parents | 191174b49bec |
children | a07bea31ef35 |
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Mon Mar 24 15:30:30 2014 +0100 +++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Mon Mar 24 15:30:36 2014 +0100 @@ -763,9 +763,12 @@ // list later). The used bytes of freed regions are accumulated in // pre_used. If par is true, the region's RSet will not be freed // up. The assumption is that this will be done later. + // The locked parameter indicates if the caller has already taken + // care of proper synchronization. This may allow some optimizations. void free_region(HeapRegion* hr, FreeRegionList* free_list, - bool par); + bool par, + bool locked = false); // Frees a humongous region by collapsing it into individual regions // and calling free_region() for each of them. The freed regions