Revision: 21808
Author: [email protected]
Date: Thu Jun 12 12:39:51 2014 UTC
Log: Grow big old generation slower.
BUG=
[email protected]
Review URL: https://codereview.chromium.org/324403008
http://code.google.com/p/v8/source/detail?r=21808
Modified:
/branches/bleeding_edge/src/heap.cc
/branches/bleeding_edge/src/heap.h
=======================================
--- /branches/bleeding_edge/src/heap.cc Thu Jun 12 12:01:01 2014 UTC
+++ /branches/bleeding_edge/src/heap.cc Thu Jun 12 12:39:51 2014 UTC
@@ -60,7 +60,6 @@
// Will be 4 * reserved_semispace_size_ to ensure that young
// generation can be aligned to its size.
maximum_committed_(0),
- old_space_growing_factor_(4),
survived_since_last_expansion_(0),
sweep_generation_(0),
always_allocate_scope_depth_(0),
@@ -5025,12 +5024,6 @@
AllocationMemento::kSize));
code_range_size_ = code_range_size * MB;
-
- // We set the old generation growing factor to 2 to grow the heap slower
on
- // memory-constrained devices.
- if (max_old_generation_size_ <= kMaxOldSpaceSizeMediumMemoryDevice) {
- old_space_growing_factor_ = 2;
- }
configured_ = true;
return true;
=======================================
--- /branches/bleeding_edge/src/heap.h Thu Jun 12 09:58:10 2014 UTC
+++ /branches/bleeding_edge/src/heap.h Thu Jun 12 12:39:51 2014 UTC
@@ -1085,9 +1085,23 @@
700 * kPointerMultiplier;
intptr_t OldGenerationAllocationLimit(intptr_t old_gen_size) {
- intptr_t limit = FLAG_stress_compaction
- ? old_gen_size + old_gen_size / 10
- : old_gen_size * old_space_growing_factor_;
+ intptr_t limit;
+ if (FLAG_stress_compaction) {
+ limit = old_gen_size + old_gen_size / 10;
+ } else if (old_gen_size < max_old_generation_size_ / 8) {
+ if (max_old_generation_size_ <= kMaxOldSpaceSizeMediumMemoryDevice) {
+ limit = old_gen_size * 2;
+ } else {
+ limit = old_gen_size * 4;
+ }
+ } else if (old_gen_size < max_old_generation_size_ / 4) {
+ limit = static_cast<intptr_t>(old_gen_size * 1.5);
+ } else if (old_gen_size < max_old_generation_size_ / 2) {
+ limit = static_cast<intptr_t>(old_gen_size * 1.2);
+ } else {
+ limit = static_cast<intptr_t>(old_gen_size * 1.1);
+ }
+
limit = Max(limit, kMinimumOldGenerationAllocationLimit);
limit += new_space_.Capacity();
intptr_t halfway_to_the_max = (old_gen_size +
max_old_generation_size_) / 2;
@@ -1512,11 +1526,6 @@
intptr_t max_executable_size_;
intptr_t maximum_committed_;
- // The old space growing factor is used in the old space heap growing
- // strategy. The new old space size is the current old space size times
- // old_space_growing_factor_.
- int old_space_growing_factor_;
-
// For keeping track of how much data has survived
// scavenge since last new space expansion.
int survived_since_last_expansion_;
--
--
v8-dev mailing list
[email protected]
http://groups.google.com/group/v8-dev
---
You received this message because you are subscribed to the Google Groups "v8-dev" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/d/optout.
