Tune evacuation candidate selection.

Tune evacuation candidate selection.

This disables aggressive compaction for non-memory reducer GCs.

BUG=chromium:502247
LOG=NO

Committed: https://crrev.com/6d13610374247d796e85bc4548a3d7b33c7274f4
Cr-Commit-Position: refs/heads/master@{#31079}

[ulan, 2015-10-01 14:30:36]

ulan@chromium.org changed reviewers:
+ hpayer@chromium.org

[ulan, 2015-10-01 14:30:36]

PTAL

[Hannes Payer (out of office), 2015-10-01 14:36:07]

lgtm

https://codereview.chromium.org/1375703003/diff/20001/src/heap/mark-compact.cc
File src/heap/mark-compact.cc (right):

https://codereview.chromium.org/1375703003/diff/20001/src/heap/mark-compact.c...
src/heap/mark-compact.cc:705: // The minimum about of memory to make aggresive
compaction worthwhile.
amount

https://codereview.chromium.org/1375703003/diff/20001/src/heap/mark-compact.c...
src/heap/mark-compact.cc:709: (heap()->HasLowAllocationRate() &&
As you suggested offline, we can remove the allocation rate heuristic here.

[ulan, 2015-10-02 14:02:09]

The CQ bit was checked by ulan@chromium.org

[ulan, 2015-10-02 14:02:09]

The patchset sent to the CQ was uploaded after l-g-t-m from hpayer@chromium.org
Link to the patchset: https://codereview.chromium.org/1375703003/#ps40001
(title: " ")

[commit-bot: I haz the power, 2015-10-02 14:02:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1375703003/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1375703003/40001

[commit-bot: I haz the power, 2015-10-02 15:13:14]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-10-02 15:13:23]

Patchset 3 (id:??) landed as
https://crrev.com/6d13610374247d796e85bc4548a3d7b33c7274f4
Cr-Commit-Position: refs/heads/master@{#31079}