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    • ulan's avatar
      Revert of Replace slots buffer with remembered set. (patchset #14 id:250001 of... · 9146bc5e
      ulan authored 
      Revert of Replace slots buffer with remembered set. (patchset #14 id:250001 of https://codereview.chromium.org/1703823002/ )

Reason for revert:
Revert because of canary crashes: crbug.com/589413

Original issue's description:
> Replace slots buffer with remembered set.
>
> Slots pointing to evacuation candidates are now recorded in the new RememberedSet<OLD_TO_OLD>.
>
> The remembered set is extended to support typed slots.
>
> During parallel evacuation all migration slots are recorded in local slots buffers.
> After evacuation all local slots are added to the remembered set.
>
> BUG=chromium:578883
> LOG=NO
>
> Committed: https://crrev.com/2285a99ef6f7d52f4f0c4d88a7db4224443ee152
> Cr-Commit-Position: refs/heads/master@{#34212}

TBR=jochen@chromium.org,hpayer@chromium.org,mlippautz@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=chromium:578883

Review URL: https://codereview.chromium.org/1725073003

Cr-Commit-Position: refs/heads/master@{#34238}
      9146bc5e
  11. 23 Feb, 2016 1 commit
    • ulan's avatar
      Replace slots buffer with remembered set. · 2285a99e
      ulan authored 
      Slots pointing to evacuation candidates are now recorded in the new RememberedSet<OLD_TO_OLD>.

The remembered set is extended to support typed slots.

During parallel evacuation all migration slots are recorded in local slots buffers.
After evacuation all local slots are added to the remembered set.

BUG=chromium:578883
LOG=NO

Review URL: https://codereview.chromium.org/1703823002

Cr-Commit-Position: refs/heads/master@{#34212}
      2285a99e
  13. 22 Feb, 2016 1 commit
  15. 17 Feb, 2016 1 commit
    • ulan's avatar
      Filter invalid slots after array trimming. · 017d128b
      ulan authored 
      If sweeping is in progress then we need to filter out slots in free space after
array trimming, because the sweeper will add the free space into free list.

This CL also fixes a bug in SlotSet::RemoveRange.

BUG=chromium:587004
LOG=NO
TBR=hpayer@chromium.org

Review URL: https://codereview.chromium.org/1701963003

Cr-Commit-Position: refs/heads/master@{#34071}
      017d128b
  17. 08 Feb, 2016 1 commit
    • ulan's avatar
      New page local store buffer. · bb883395
      ulan authored 
      This replaces the global remembered set with per-page remembered sets.

Each page in the old space, map space, and large object space keeps track of
the set of slots in the page pointing to the new space.

The data structure for storing slot sets is a two-level bitmap, which allows
us to remove the store buffer overflow and SCAN_ON_SCAVENGE logic.

Design doc: https://goo.gl/sMKCf7

BUG=chromium:578883
LOG=NO

Review URL: https://codereview.chromium.org/1608583002

Cr-Commit-Position: refs/heads/master@{#33806}
      bb883395
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    • hpayer's avatar
      Simplified garbage collection idle handler. · c293448f
      hpayer authored 
      The current GC idle time handling heuristics are getting too complicated. Moreover, with longer idle time we are getting more full garbage collections. This CL shrinks the idle round window and reduces complexity in the case where we cause a full garbage collection.

BUG=chromium:468554
LOG=n

Review URL: https://codereview.chromium.org/1024043003

Cr-Commit-Position: refs/heads/master@{#27493}
      c293448f
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