[webkit-changes] [WebKit/WebKit] c84d7c: Don't sweep when opportunistic sweeping is keeping up

[Ryosuke Niwa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: c84d7c42e21956e1ec86e1f2f485c746758659a0
      https://github.com/WebKit/WebKit/commit/c84d7c42e21956e1ec86e1f2f485c746758659a0
  Author: Ryosuke Niwa <rniwa at webkit.org>
  Date:   2023-11-07 (Tue, 07 Nov 2023)

  Changed paths:
    M Source/JavaScriptCore/heap/IncrementalSweeper.cpp
    M Source/JavaScriptCore/heap/IncrementalSweeper.h

  Log Message:
  -----------
  Don't sweep when opportunistic sweeping is keeping up
https://bugs.webkit.org/show_bug.cgi?id=264348

Reviewed by Wenson Hsieh and Yusuke Suzuki.

Avoid sweeping when IncrementalSweeper fires if opportunistic task has been keeping up.
This appears to be ~1% progression on JetStream 2.

* Source/JavaScriptCore/heap/IncrementalSweeper.cpp:
(JSC::IncrementalSweeper::doWork):
(JSC::IncrementalSweeper::doSweep):
* Source/JavaScriptCore/heap/IncrementalSweeper.h:

Canonical link: https://commits.webkit.org/270372@main