From 1046b1a4644ce932920a5aab1c7f17941b50cf36 Mon Sep 17 00:00:00 2001 From: "vegorov@chromium.org" Date: Mon, 26 Sep 2011 08:53:27 +0000 Subject: [PATCH] Disable compaction. Introduce flag to control code compaction. R=danno@chromium.org Review URL: http://codereview.chromium.org/8037022 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9420 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 --- src/flag-definitions.h | 3 ++- src/mark-compact.cc | 5 ++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/src/flag-definitions.h b/src/flag-definitions.h index 358d67e472..654c32271b 100644 --- a/src/flag-definitions.h +++ b/src/flag-definitions.h @@ -287,8 +287,9 @@ DEFINE_bool(lazy_sweeping, true, "Use lazy sweeping for old pointer and data spaces") DEFINE_bool(cleanup_caches_in_maps_at_gc, true, "Flush code caches in maps during mark compact cycle.") -DEFINE_bool(never_compact, false, +DEFINE_bool(never_compact, true, "Never perform compaction on full GC - testing only") +DEFINE_bool(compact_code_space, true, "Compact code space") DEFINE_bool(cleanup_code_caches_at_gc, true, "Flush inline caches prior to mark compact collection and " "flush code caches in maps during mark compact cycle.") diff --git a/src/mark-compact.cc b/src/mark-compact.cc index 54a293685f..e5178ecbfe 100644 --- a/src/mark-compact.cc +++ b/src/mark-compact.cc @@ -244,7 +244,10 @@ bool MarkCompactCollector::StartCompaction() { CollectEvacuationCandidates(heap()->old_pointer_space()); CollectEvacuationCandidates(heap()->old_data_space()); - CollectEvacuationCandidates(heap()->code_space()); + + if (FLAG_compact_code_space) { + CollectEvacuationCandidates(heap()->code_space()); + } heap()->old_pointer_space()->EvictEvacuationCandidatesFromFreeLists(); heap()->old_data_space()->EvictEvacuationCandidatesFromFreeLists();