[webkit-changes] [WebKit/WebKit] ab6f03: REGRESSION (265825 at main): Safari CPU usage in Surf...

[Dean Jackson]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: ab6f0338a00f9fa6773cd5f574b90b91f9f5b99f
      https://github.com/WebKit/WebKit/commit/ab6f0338a00f9fa6773cd5f574b90b91f9f5b99f
  Author: Dean Jackson <dino at apple.com>
  Date:   2023-08-03 (Thu, 03 Aug 2023)

  Changed paths:
    M Source/WebCore/PAL/pal/spi/cocoa/QuartzCoreSPI.h
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm

  Log Message:
  -----------
  REGRESSION (265825 at main): Safari CPU usage in SurferJoannaProxy increased by 5.8%
https://bugs.webkit.org/show_bug.cgi?id=259805
rdar://111986083

Reviewed by Matt Woodrow.

The fix in 265825 at main caused a slight performance regression. We can
now back out most of it, thanks to a change in CoreAnimation.

The thing we don't restore is the CATransaction.

* Source/WebCore/PAL/pal/spi/cocoa/QuartzCoreSPI.h:
* Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm:
(WebKit::RemoteLayerTreeDrawingAreaProxy::commitLayerTree):

Canonical link: https://commits.webkit.org/266557@main