[Webkit-unassigned] [Bug 236173] Big drop in canvas performance above 3840px

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236173

--- Comment #6 from Myles C. Maxfield <mmaxfield at apple.com> ---
Limits like this, in general, are meant to make sure misbehaving pages can’t take all the resources on the system thereby making your computer unusable.

One path forward here might be to use different limits on different machines. Or maybe we could use something like https://developer.apple.com/documentation/metal/mtldevice/2369280-recommendedmaxworkingsetsize. Or maybe we just re-evaluate the perf&memory on current machines to see if we can just bump up the hardcoded limit.

Whatever we do, we should be careful about fingerprinting. We don’t want to give trackers more information about the user’s device. So exposing a number that’s queryable from JavaScript is probably not great.

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