Revision: 14701
Author: [email protected]
Date: Thu May 16 02:21:19 2013
Log: Increase old generation space significantly if we observe a high
promotion rate.
BUG=
Review URL: https://codereview.chromium.org/15104004
http://code.google.com/p/v8/source/detail?r=14701
Modified:
/branches/bleeding_edge/src/heap.h
=======================================
--- /branches/bleeding_edge/src/heap.h Wed May 15 08:23:53 2013
+++ /branches/bleeding_edge/src/heap.h Thu May 16 02:21:19 2013
@@ -1585,6 +1585,11 @@
intptr_t limit =
Max(old_gen_size + old_gen_size / divisor, kMinimumPromotionLimit);
limit += new_space_.Capacity();
+ // TODO(hpayer): Can be removed when when pretenuring is supported for
all
+ // allocation sites.
+ if (IsHighSurvivalRate() && IsStableOrIncreasingSurvivalTrend()) {
+ limit *= 2;
+ }
intptr_t halfway_to_the_max = (old_gen_size +
max_old_generation_size_) / 2;
return Min(limit, halfway_to_the_max);
}
@@ -1595,6 +1600,11 @@
intptr_t limit =
Max(old_gen_size + old_gen_size / divisor,
kMinimumAllocationLimit);
limit += new_space_.Capacity();
+ // TODO(hpayer): Can be removed when when pretenuring is supported for
all
+ // allocation sites.
+ if (IsHighSurvivalRate() && IsStableOrIncreasingSurvivalTrend()) {
+ limit *= 2;
+ }
intptr_t halfway_to_the_max = (old_gen_size +
max_old_generation_size_) / 2;
return Min(limit, halfway_to_the_max);
}
--
--
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