Bug 135177 - REGRESSION (r171239): Much more time spent taking snapshots during the PLT
Summary: REGRESSION (r171239): Much more time spent taking snapshots during the PLT
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: WebKit2 (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Tim Horton
URL:
Keywords: InRadar
Depends on: 135190
Blocks:
  Show dependency treegraph
 
Reported: 2014-07-22 14:37 PDT by Tim Horton
Modified: 2014-07-23 03:25 PDT (History)
5 users (show)

See Also:


Attachments
patch (5.05 KB, patch)
2014-07-22 14:43 PDT, Tim Horton
mitz: review+
Details | Formatted Diff | Diff

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Description Tim Horton 2014-07-22 14:37:35 PDT
We're taking way more snapshots now due to a mistake in r171239.

<rdar://problem/17764847>
Comment 1 Tim Horton 2014-07-22 14:43:28 PDT
Created attachment 235316 [details]
patch
Comment 2 Tim Horton 2014-07-22 14:47:11 PDT
http://trac.webkit.org/changeset/171366
Comment 3 Alexey Proskuryakov 2014-07-22 22:53:15 PDT
This change broke three API tests, so I'm going to roll out.

Tests that failed:
  WKUserContentController.ScriptMessageHandlerWithNavigation
  WebKit2.RestoreSessionStateContainingFormData
Tests that timed out:
  DeviceScaleFactorOnBack.WebKit2
Comment 4 WebKit Commit Bot 2014-07-22 23:00:02 PDT
Re-opened since this is blocked by bug 135190
Comment 5 Tim Horton 2014-07-23 03:04:54 PDT
What! How is that possible? I added this message very recently and the *only* thing it does is take a snapshot. Will investigate.
Comment 6 Tim Horton 2014-07-23 03:16:49 PDT
The UI process is stuck in a HashTable lock adding a string to the AtomicString table under decidePolicyForResponse. Still unclear how I could have influenced this.
Comment 7 Tim Horton 2014-07-23 03:19:03 PDT
Given http://trac.webkit.org/changeset/171367 I wonder if ap was off-by-one somehow. Testing now.
Comment 8 Tim Horton 2014-07-23 03:23:48 PDT
Rolling out my patch changes nothing, rolling out Joe's fixes all three tests. gg.
Comment 9 Tim Horton 2014-07-23 03:25:30 PDT
(In reply to comment #8)
> Rolling out my patch changes nothing, rolling out Joe's fixes all three tests. gg.

Rolled this one back in in http://trac.webkit.org/changeset/171471, will go roll Joe out.