User:Jdm/SlowCSSSelectors

From MozillaWiki
< User:Jdm
Revision as of 22:16, 9 March 2012 by Jdm (talk | contribs) (Created page with "https://developer.mozilla.org/en/Writing_Efficient_CSS http://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSRuleProcessor.cpp http://mxr.mozilla.org/mozilla-central/so...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

https://developer.mozilla.org/en/Writing_Efficient_CSS http://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSRuleProcessor.cpp http://mxr.mozilla.org/mozilla-central/source/layout/style/nsCSSRuleProcessor.h http://mxr.mozilla.org/mozilla-central/source/layout/style/StyleRule.h http://mxr.mozilla.org/mozilla-central/source/layout/style/StyleRule.cpp http://mxr.mozilla.org/mozilla-central/source/layout/style/nsNthIndexCache.cpp http://mxr.mozilla.org/mozilla-central/source/layout/style/nsNthIndexCache.h

Functions like SelectorMatches show up in C++ profiles when CSS selector matching is being a problem. However, that is too low level - individual calls of SelectorMatches are fast, but the sheer volume of calls causes the problem. Instead, RuleHash is used to avoid even looking at most selectors.

Retrieved from "https://wiki.mozilla.org/index.php?title=User:Jdm/SlowCSSSelectors&oldid=405987"