Mercurial > hg > truffle
diff src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp @ 3766:c3f1170908be
7045330: G1: Simplify/fix the HeapRegionSeq class
7042285: G1: native memory leak during humongous object allocation
6804436: G1: heap region indices should be size_t
Summary: A series of fixes and improvements to the HeapRegionSeq class: a) replace the _regions growable array with a standard C array, b) avoid de-allocating / re-allocating HeapRegion instances when the heap shrinks / grows (fix for 7042285), c) introduce fast method to map address to HeapRegion via a "biased" array pointer, d) embed the _hrs object in G1CollectedHeap, instead of pointing to it via an indirection, e) assume that all the regions added to the HeapRegionSeq instance are contiguous, f) replace int's with size_t's for indexes (and expand that to HeapRegion as part of 6804436), g) remove unnecessary / unused methods, h) rename a couple of fields (_alloc_search_start and _seq_bottom), i) fix iterate_from() not to always start from index 0 irrespective of the region passed to it, j) add a verification method to check the HeapRegionSeq assumptions, k) always call the wrappers for _hrs.iterate(), _hrs_length(), and _hrs.at() from G1CollectedHeap, not those methods directly, and l) unify the code that expands the sequence (by either re-using or creating a new HeapRegion) and make it robust wrt to a HeapRegion allocation failing.
Reviewed-by: stefank, johnc, brutisso
author | tonyp |
---|---|
date | Fri, 10 Jun 2011 13:16:40 -0400 |
parents | ae5b2f1dcf12 |
children | 5f6f2615433a |
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--- a/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Wed Jun 08 21:48:38 2011 -0400 +++ b/src/share/vm/gc_implementation/g1/g1CollectorPolicy.cpp Fri Jun 10 13:16:40 2011 -0400 @@ -2639,11 +2639,8 @@ assert(!hr->is_young(), "non-incremental add of young region"); if (G1PrintHeapRegions) { - gclog_or_tty->print_cr("added region to cset " - "%d:["PTR_FORMAT", "PTR_FORMAT"], " - "top "PTR_FORMAT", %s", - hr->hrs_index(), hr->bottom(), hr->end(), - hr->top(), hr->is_young() ? "YOUNG" : "NOT_YOUNG"); + gclog_or_tty->print_cr("added region to cset "HR_FORMAT, + HR_FORMAT_PARAMS(hr)); } if (_g1->mark_in_progress()) @@ -2813,11 +2810,8 @@ _inc_cset_tail = hr; if (G1PrintHeapRegions) { - gclog_or_tty->print_cr(" added region to incremental cset (RHS) " - "%d:["PTR_FORMAT", "PTR_FORMAT"], " - "top "PTR_FORMAT", young %s", - hr->hrs_index(), hr->bottom(), hr->end(), - hr->top(), (hr->is_young()) ? "YES" : "NO"); + gclog_or_tty->print_cr(" added region to incremental cset (RHS) "HR_FORMAT, + HR_FORMAT_PARAMS(hr)); } } @@ -2838,11 +2832,8 @@ _inc_cset_head = hr; if (G1PrintHeapRegions) { - gclog_or_tty->print_cr(" added region to incremental cset (LHS) " - "%d:["PTR_FORMAT", "PTR_FORMAT"], " - "top "PTR_FORMAT", young %s", - hr->hrs_index(), hr->bottom(), hr->end(), - hr->top(), (hr->is_young()) ? "YES" : "NO"); + gclog_or_tty->print_cr(" added region to incremental cset (LHS) "HR_FORMAT, + HR_FORMAT_PARAMS(hr)); } }