Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 6830b122e210ee623c94b06773365f7634f114b1
https://github.com/WebKit/WebKit/commit/6830b122e210ee623c94b06773365f7634f114b1
Author: Ben Nham <[email protected]>
Date: 2026-03-10 (Tue, 10 Mar 2026)
Changed paths:
M Source/WebKit/UIProcess/AuxiliaryProcessProxy.cpp
Log Message:
-----------
Make lifetime activity use background assertion by default on macOS
https://bugs.webkit.org/show_bug.cgi?id=309527
rdar://166762210
Reviewed by Per Arne Vollan.
On macOS, all processes get a lifetime activity by default at creation time
which currently uses a
foreground assertion. This means processes that don't use RunningBoard
throttling (such as
NetworkProcess and GPUProcess) always run at foreground priority, which is
higher than we intended.
This changes the default assertion used by the lifetime activity to be a
background assertion
instead of a foreground activity. When any WebContent is hosting a visible
webpage, this will have
no impact as NetworkProcess and GPUProcess will detect the presence of the
visible webpage and boost
themselves back up to foreground priority.
* Source/WebKit/UIProcess/AuxiliaryProcessProxy.cpp:
(WebKit::AuxiliaryProcessProxy::didFinishLaunching):
Canonical link: https://commits.webkit.org/309012@main
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