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8064721: The card tables only ever need two covering regions

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Reviewed-by: jmasa, tschatzl, kbarrett
This commit is contained in:
Erik Helin 2014-11-18 10:36:42 +01:00
parent 2616e09389
commit f3997d8eed
17 changed files with 35 additions and 75 deletions
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2
hotspot/src/share/vm/gc_implementation/g1/g1CollectedHeap.cpp
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@ -1888,7 +1888,7 @@ jint G1CollectedHeap::initialize() {
initialize_reserved_region((HeapWord*)heap_rs.base(), (HeapWord*)(heap_rs.base() + heap_rs.size()));
// Create the gen rem set (and barrier set) for the entire reserved region.
_rem_set = collector_policy()->create_rem_set(reserved_region(), 2);
_rem_set = collector_policy()->create_rem_set(reserved_region());
set_barrier_set(rem_set()->bs());
if (!barrier_set()->is_a(BarrierSet::G1SATBCTLogging)) {
vm_exit_during_initialization("G1 requires a G1SATBLoggingCardTableModRefBS");