[Webkit-unassigned] [Bug 171597] REGRESSION: WebGL low performance of layer compositing

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=171597

--- Comment #9 from Nik S <nik73ru at gmail.com> ---
(In reply to Dean Jackson from comment #7)
> This is actually expected behaviour. On some hardware, the integrated card
> is good enough to run your demo at a nice framerate. On others, it isn't.
> 
> If you really need to get maximum performance, you can opt in to using the
> discrete GPU by using the powerPreference context creation attribute:
> 
> https://www.khronos.org/registry/webgl/specs/latest/1.0/#5.2.1

Thank you for explanation. However, I guess that there is another case. Could you please explain why on the same integrated GPU (Intel Iris Graphics 6100) I can get so different FPS values when safari fix is enabled/disabled? 

In this demo http://jsfiddle.net/unlimit/3pwbLfmn/85/embedded/result/ fix button just add renderer.context.finish(); webgl context finish call.

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