213243 2020-06-16 04:58:06 -0700 O(n^2) behavior in media query resolution 2020-06-16 22:54:30 -0700 1 1 1 Unclassified WebKit CSS WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 212757 1 koivisto webkit-unassigned andersca oldest_to_newest 1663042 0 koivisto 2020-06-16 04:58:06 -0700 RuleSet::evaluteDynamicMediaQueryRules has complexity num(media queries) * num(style rules) for queries that flip value. This can become significant for pages that have 1000s of media queries. 1663043 1 koivisto 2020-06-16 05:01:43 -0700 <rdar://63997043> 1663044 2 401995 koivisto 2020-06-16 05:10:05 -0700 Created attachment 401995 patch 1663052 3 401997 koivisto 2020-06-16 05:53:00 -0700 Created attachment 401997 patch 1663088 4 ews-feeder 2020-06-16 08:12:35 -0700 Committed r263092: <https://trac.webkit.org/changeset/263092> All reviewed patches have been landed. Closing bug and clearing flags on attachment 401997. 401995 2020-06-16 05:10:05 -0700 2020-06-16 05:53:00 -0700 patch media-query-on2.patch text/plain 4260 koivisto ZGlmZiAtLWdpdCBhL1NvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZyBiL1NvdXJjZS9XZWJDb3JlL0No YW5nZUxvZwppbmRleCAyNTUyZDgyNDU5ZS4uNWZkZWRhMTNhMTAgMTAwNjQ0Ci0tLSBhL1NvdXJj ZS9XZWJDb3JlL0NoYW5nZUxvZworKysgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKQEAgLTEs MyArMSwyNSBAQAorMjAyMC0wNi0xNiAgQW50dGkgS29pdmlzdG8gIDxhbnR0aUBhcHBsZS5jb20+ CisKKyAgICAgICAgTyhuXjIpIGJlaGF2aW9yIGluIG1lZGlhIHF1ZXJ5IHJlc29sdXRpb24KKyAg ICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTIxMzI0MworCisg ICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFdlIHdlcmUgdHJh dmVyc2luZyBhbGwgcnVsZXMgaW4gYSBSdWxlU2V0IGluc2lkZSBhIGxvb3Agb3ZlciBhbGwgbWVk aWEgcXVlcmllcyB0aGF0IGNoYW5nZSB2YWx1ZS4KKyAgICAgICAgVGhpcyBiZWNvbWVzIHByb2Js ZW1hdGljIHdoZW4geW91IGhhdmUgdGhvdXNhbmRzIG9mIG1lZGlhIHF1ZXJpZXMuCisKKyAgICAg 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