[Webkit-unassigned] [Bug 251560] New: Cocoa FontCache::platformReleaseNoncriticalMemory should call FontCache::invalidate on all platforms

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=251560

            Bug ID: 251560
           Summary: Cocoa FontCache::platformReleaseNoncriticalMemory
                    should call FontCache::invalidate on all platforms
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Text
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: heycam at apple.com
                CC: mmaxfield at apple.com

The call to invalidate() was removed on non-macOS in bug 251559 due to causing memory regressions on iOS.  We should understand why this is, because invalidate() should be clearing more memory.

Maybe it's somehow causing more memory to be used in the GPU process, when GPU process DOM rendering is enabled? (And that's why it didn't show as a regression on macOS?)

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