[Webkit-unassigned] [Bug 71886] Defer applying style recalculation when stylesheet is loaded to improve page load performance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=71886





--- Comment #10 from Johnny(Jianning) Ding <jnd at chromium.org>  2013-01-15 17:14:10 PST ---
(In reply to comment #9)
> This bug came up in the context of http://en.wikipedia.org/wiki/Wikipedia load performance, which is abysmally slow (particularly on mobile), mostly due to repeated forced style recalcs from:
> https://gerrit.wikimedia.org/r/gitweb?p=mediawiki/core.git;a=blob;f=resources/mediawiki/mediawiki.js;hb=8ddc49d56345fdd74016424db37a6e187829948b#l445
> 
> I have not yet tried your patch to see how it changes load performance, but I'm curious to do so.

I haven't touched this bug for quite a while. However I believe the direction of the initial patch is right and Firefox does asynchronously apply style rules (at least last time I dug into gecko source).   Hopefully I can find some time to get back to this.

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