runtime/vm/pages.cc - Issue 233473002: Limit shrinkage: allow growth by at least half the pages freed by GC.

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Unified Diff: runtime/vm/pages.cc

Issue 233473002: Limit shrinkage: allow growth by at least half the pages freed by GC. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: Created 6 years, 8 months ago

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Index: runtime/vm/pages.cc

===================================================================

--- runtime/vm/pages.cc (revision 34928)

+++ runtime/vm/pages.cc (working copy)

@@ -703,6 +703,11 @@

grow_heap_ = Utils::Maximum(capacity_growth_in_pages, heap_growth_rate_);

heap->RecordData(PageSpace::kPageGrowth, capacity_growth_in_pages);

}

+ // Limit shrinkage: allow growth by at least half the pages freed by GC.

+ intptr_t freed_pages =

+ (before.capacity_in_words - after.capacity_in_words) /

+ PageSpace::kPageSizeInWords;

+ grow_heap_ = Utils::Maximum(grow_heap_, freed_pages / 2);

heap->RecordData(PageSpace::kGarbageRatio, collected_garbage_ratio);

heap->RecordData(PageSpace::kGCTimeFraction,

garbage_collection_time_fraction);

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