130357 2014-03-17 13:56:21 -0700 Add one-deep cache to opaque roots hashset. 2014-03-17 20:28:50 -0700 1 1 1 Unclassified WebKit JavaScriptCore 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 kling kling barraclough commit-queue darin mhahnenberg oldest_to_newest 991376 0 kling 2014-03-17 13:56:21 -0700 For WebCore JS wrappers, we're almost always root()'ed at the Document, which means that we're querying the SlotVisitor's opaque roots set for the same Document* over and over. On DoYouEvenBench, we're spending ~1.5% of time in JSNodeOwner::isReachableFromOpaqueRoots(). This optimization attempts to alleviate some of that. 991378 1 226958 kling 2014-03-17 13:58:17 -0700 Created attachment 226958 Patch idea 991442 2 226958 mhahnenberg 2014-03-17 16:12:13 -0700 Comment on attachment 226958 Patch idea r=me 991529 3 226958 commit-queue 2014-03-17 20:28:47 -0700 Comment on attachment 226958 Patch idea Clearing flags on attachment: 226958 Committed r165796: <http://trac.webkit.org/changeset/165796> 991530 4 commit-queue 2014-03-17 20:28:50 -0700 All reviewed patches have been landed. Closing bug. 226958 2014-03-17 13:58:17 -0700 2014-03-17 20:28:47 -0700 Patch idea bug-130357.diff text/plain 8676 kling ZGlmZiAtLWdpdCBhL1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cgYi9Tb3VyY2UvSmF2 YVNjcmlwdENvcmUvQ2hhbmdlTG9nCmluZGV4IGQ3YjZjNTguLmRlODdkM2EgMTAwNjQ0Ci0tLSBh L1NvdXJjZS9KYXZhU2NyaXB0Q29yZS9DaGFuZ2VMb2cKKysrIGIvU291cmNlL0phdmFTY3JpcHRD b3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDI4IEBACisyMDE0LTAzLTE3ICBBbmRyZWFzIEtsaW5n ICA8YWtsaW5nQGFwcGxlLmNvbT4KKworICAgICAgICBBZGQgb25lLWRlZXAgY2FjaGUgdG8gb3Bh cXVlIHJvb3RzIGhhc2hzZXQuCisgICAgICAgIDxodHRwczovL3dlYmtpdC5vcmcvYi8xMzAzNTc+ CisKKyAgICAgICAgVGhlIHZhc3QgbWFqb3JpdHkgb2YgV2ViQ29yZSBKUyB3cmFwcGVycyB3aWxs IGhhdmUgdGhlaXIgRG9jdW1lbnQqCisgICAgICAgIGFzIHRoZSByb290KCkuIFRoaXMgY2hhbmdl IGFkZHMgYSBzaW1wbGUgb3B0aW1pemF0aW9uIHdoZXJlIHdlIGNhY2hlCisgICAgICAgIHRoZSBs YXN0IGxvb2t1cCBhbmQgYXZvaWQgZ29pbmcgdG8gdGhlIGhhc2hzZXQgZm9yIHJlcGVhdGVkIHF1 ZXJpZXMuCisKKyAgICAgICAgTG9va3MgbGlrZSAwLjQlIHByb2dyZXNzaW9uIG9uIERZRUIgb24g 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