Closed Bug 498562 Opened 11 years ago Closed 10 years ago
[FIX]Avoid Expand/Compress cycle for inline style sets
One obvious cost when setting inline style is the Expand/Compress we end up doing on the inline style in the process. We don't _really_ need to do it in many cases, and not doing it is a 30% win on my inline style microbenchmark (in the url field) and about an 8-10% win on "real-life" testcases (the bugs this blocks). I'm not quite sure what I think of this approach, but I do think it's pretty safe and makes a noticeable performance difference.
Comment on attachment 383418 [details] [diff] [review] Now with missing ClearPropertyBit call + * An |nsCSSCompressedDataBlock| holds a usuallu-immutable chunk of usually + // return null. Must notbe called for shorthand properties. not be r=dbaron
Pushed http://hg.mozilla.org/mozilla-central/rev/d8917fe0ed6a with those comment changes.
Status: NEW → RESOLVED
Closed: 10 years ago
Resolution: --- → FIXED
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