[Webkit-unassigned] [Bug 162865] Background tabs should suspend or unload on macOS

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=162865

Geoffrey Garen <ggaren at apple.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|Change behavior of tabs on  |Background tabs should
                   |macOS                       |suspend or unload on macOS

--- Comment #2 from Geoffrey Garen <ggaren at apple.com> ---
Broadly speaking, WebKit already has this feature. It doesn't kill background tabs, but it does throttle background tab activity.

We've done some benchmarking that shows that throttled background tabs use minimal CPU and memory (since they page out to disk and stay there). 

One way to move this conversation forward is to provide an example tab set that, when loaded in Safari Technology Preview, makes you have a bad time. We might find a simple bug in the existing throttling feature, or we might find a motivating example for some bigger design change.

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