NEW254060
discard IPC buffer pages when idle 
https://bugs.webkit.org/show_bug.cgi?id=254060
Summary discard IPC buffer pages when idle
Cameron McCormack (:heycam)
Reported 2023-03-16 20:58:27 PDT
Particularly for background tabs, we don't need to keep dirty pages filled with old IPC messages around. We could recreate the SharedMemory and send the new copy over to the GPU process, but it seems easier to do cause the existing pages to lose their contents instead.
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Radar WebKit Bug Importer
Comment 1 2023-03-16 20:58:43 PDT
<rdar://problem/106841897>
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