[webkit-changes] [WebKit/WebKit] df3bb0: Add tracing points for incremental sweeps and oppo...

[Ryosuke Niwa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: df3bb0c1f246089a55bd70fa6e95b61a88850f63
      https://github.com/WebKit/WebKit/commit/df3bb0c1f246089a55bd70fa6e95b61a88850f63
  Author: Ryosuke Niwa <rniwa at webkit.org>
  Date:   2023-08-07 (Mon, 07 Aug 2023)

  Changed paths:
    M Source/JavaScriptCore/heap/IncrementalSweeper.cpp
    M Source/WTF/wtf/SystemTracing.h
    M Source/WebCore/page/Page.cpp
    M Source/WebKit/Resources/Signposts/SystemTracePoints.plist

  Log Message:
  -----------
  Add tracing points for incremental sweeps and opportunistically scheduled tasks
https://bugs.webkit.org/show_bug.cgi?id=259877

Reviewed by Keith Miller and Cameron McCormack.

Added trace points for incremental sweeps and opportunistically scheduled tasks.
This will help us investigate why 266621 at main introduced a ~1% regression in Speedometer 2.1.

* Source/JavaScriptCore/heap/IncrementalSweeper.cpp:
(JSC::IncrementalSweeper::doSweep):
* Source/WTF/wtf/SystemTracing.h:
* Source/WebCore/page/Page.cpp:
(WebCore::Page::performOpportunisticallyScheduledTasks):
* Source/WebKit/Resources/Signposts/SystemTracePoints.plist:

Canonical link: https://commits.webkit.org/266652@main