Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp @ 3764:053d84a76d3d
7032531: G1: enhance GC logging to include more accurate eden / survivor size transitions
Summary: This changeset extends the logging information generated by +PrintGCDetails to also print out separate size transitions for the eden, survivors, and old regions.
Reviewed-by: ysr, brutisso
author | tonyp |
---|---|
date | Wed, 08 Jun 2011 15:31:51 -0400 |
parents | 2aa9ddbb9e60 |
children | c3f1170908be |
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--- a/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Wed Jun 08 08:39:53 2011 -0700 +++ b/src/share/vm/gc_implementation/g1/g1CollectedHeap.hpp Wed Jun 08 15:31:51 2011 -0400 @@ -103,6 +103,19 @@ size_t length() { return _length; } size_t survivor_length() { return _survivor_length; } + // Currently we do not keep track of the used byte sum for the + // young list and the survivors and it'd be quite a lot of work to + // do so. When we'll eventually replace the young list with + // instances of HeapRegionLinkedList we'll get that for free. So, + // we'll report the more accurate information then. + size_t eden_used_bytes() { + assert(length() >= survivor_length(), "invariant"); + return (length() - survivor_length()) * HeapRegion::GrainBytes; + } + size_t survivor_used_bytes() { + return survivor_length() * HeapRegion::GrainBytes; + } + void rs_length_sampling_init(); bool rs_length_sampling_more(); void rs_length_sampling_next();