hg: hsx/hotspot-gc/hotspot: 2 new changesets

john.cuthbertson at oracle.com john.cuthbertson at oracle.com
Wed Jun 5 00:16:24 UTC 2013

Changeset: 87c64c0438fb
Author:    tamao
Date:      2013-06-03 14:37 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/87c64c0438fb

6976350: G1: deal with fragmentation while copying objects during GC
Summary: Create G1ParGCAllocBufferContainer to contain two buffers instead of previously using one buffer, in order to hold the first priority buffer longer. Thus, when some large objects hits the value of free space left in the first priority buffer it has an alternative to fit in the second priority buffer while the first priority buffer is given more chances to try allocating smaller objects. Overall, it will improve heap space efficiency.
Reviewed-by: johnc, jmasa, brutisso
Contributed-by: tamao <tao.mao at oracle.com>

! src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp
! src/share/vm/gc_implementation/shared/parGCAllocBuffer.hpp

Changeset: 2f7a31318b84
Author:    johnc
Date:      2013-06-04 14:00 -0700
URL:       http://hg.openjdk.java.net/hsx/hotspot-gc/hotspot/rev/2f7a31318b84


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