154014 2016-02-08 15:55:10 -0800 [iOS] Throw away some unlinked code when navigating to a new page. 2016-02-09 04:37:49 -0800 1 1 1 Unclassified WebKit WebCore JavaScript WebKit Nightly Build Unspecified Unspecified REOPENED Performance P2 Normal --- 154026 1 kling kling barraclough cdumez commit-queue japhet keith_miller kling mark.lam msaboff saam oldest_to_newest 1163046 0 kling 2016-02-08 15:55:10 -0800 Let's throw away even more code when leaving a page! 1163048 1 270890 kling 2016-02-08 15:56:26 -0800 Created attachment 270890 Patch 1163108 2 270890 commit-queue 2016-02-08 18:22:30 -0800 Comment on attachment 270890 Patch Clearing flags on attachment: 270890 Committed r196286: <http://trac.webkit.org/changeset/196286> 1163109 3 commit-queue 2016-02-08 18:22:35 -0800 All reviewed patches have been landed. Closing bug. 1163169 4 commit-queue 2016-02-09 04:35:05 -0800 Re-opened since this is blocked by bug 154026 1163171 5 kling 2016-02-09 04:37:49 -0800 Seems like this does bad things to iOS PLT. Possibly due to CodeCache vending executables for functions, not unlinkedcodeblocks. So this code might be nuking the unlinked code for those, assuming that Heap tracks CodeCache executables. Need to look into it. Also this was a much smaller win on bots than throwing away linked code was. 270890 2016-02-08 15:56:26 -0800 2016-02-08 18:22:30 -0800 Patch bug-154014.diff text/plain 5517 kling ZGlmZiAtLWdpdCBhL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cgYi9Tb3VyY2UvSmF2 YVNjcmlwdENvcmUvQ2hhbmdlTG9nCmluZGV4IDBiMjc0NDMuLjQ0MjMyNjQgMTAwNjQ0Ci0tLSBh L1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL0phdmFTY3JpcHRD b3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE1IEBACisyMDE2LTAyLTA4ICBBbmRyZWFzIEtsaW5n ICA8YWtsaW5nQGFwcGxlLmNvbT4KKworICAgICAgICBbaU9TXSBUaHJvdyBhd2F5IHNvbWUgdW5s aW5rZWQgY29kZSB3aGVuIG5hdmlnYXRpbmcgdG8gYSBuZXcgcGFnZS4KKyAgICAgICAgPGh0dHBz Oi8vd2Via2l0Lm9yZy9iLzE1NDAxND4KKworICAgICAgICBSZXZpZXdlZCBieSBOT0JPRFkgKE9P UFMhKS4KKworICAgICAgICAqIHJ1bnRpbWUvVk0uY3BwOgorICAgICAgICAoSlNDOjpWTTo6ZGVs ZXRlQWxsQ29kZUV4Y2VwdENhY2hlcyk6CisgICAgICAgIChKU0M6OlZNOjpkZWxldGVBbGxMaW5r ZWRDb2RlKTogRGVsZXRlZC4KKyAgICAgICAgKiBydW50aW1lL1ZNLmg6CisKIDIwMTYtMDItMDgg 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