[Webkit-unassigned] [Bug 230749] REGRESSION (Safari 15): Poor WebGL gl.POINTS performance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230749

--- Comment #11 from Richard Davey <rdavey at gmail.com> ---
We're seeing an inconsistent but significant performance decrease in games made with our library (Phaser 3). Games that run at 60fps solid under iOS14 now struggle to hit 20fps. The inconsistency is that it doesn't impact them all, so it can't be our default shaders. We also don't use GL_POINTS at all, so it's unrelated to that. We have simple quads and index buffers.

I will start trying to debug this tomorrow and produce a test case for you but just wanted to add this is a very real issue. It's also not device-specific as we've had reports from across pretty much all modern Apple hardware. It's almost as if something forces Safari into low-power mode, even though that is disabled in the General Settings.

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