101474 2012-11-07 07:51:24 -0800 [V8] WebKit sends unnecessary low memory notification when running memory benchmarks 2012-11-07 09:12:48 -0800 1 1 1 Unclassified WebKit WebCore JavaScript 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 ulan ulan abarth haraken japhet webkit.review.bot oldest_to_newest 760697 0 ulan 2012-11-07 07:51:24 -0800 In the following benchmark, we get GC pause of about 15 seconds because of low memory notification that was sent from WebKit. http://people.mozilla.org/~wmccloskey/incremental-blog/example-pause.html In this case the low memory notification is unnecessary because all memory usage consists of V8 objects, not DOM objects. So in this case V8 can schedule GC itself more optimally. 760705 1 172804 ulan 2012-11-07 08:03:43 -0800 Created attachment 172804 Patch 760721 2 172808 ulan 2012-11-07 08:18:57 -0800 Created attachment 172808 Patch 760723 3 172808 haraken 2012-11-07 08:20:38 -0800 Comment on attachment 172808 Patch I discussed with ulan offline. LGTM. 760725 4 172811 ulan 2012-11-07 08:21:51 -0800 Created attachment 172811 Patch 760756 5 172811 webkit.review.bot 2012-11-07 09:12:44 -0800 Comment on attachment 172811 Patch Clearing flags on attachment: 172811 Committed r133765: <http://trac.webkit.org/changeset/133765> 760757 6 webkit.review.bot 2012-11-07 09:12:48 -0800 All reviewed patches have been landed. Closing bug. 172804 2012-11-07 08:03:43 -0800 2012-11-07 08:18:53 -0800 Patch bug-101474-20121107170153.patch text/plain 2375 ulan U3VidmVyc2lvbiBSZXZpc2lvbjogMTMzNjUwCmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggYmY5ZTEzZDU2ZGE2ZTdh ZjU5ZTk4ZGIzM2YxNzcyMGE3ZDJmYWJkZS4uZDc1Y2FiMWFiZWNmZDdlYmRjMGVjZmNhNWMzMWJi NWEzMjQxZmY4MCAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDE3IEBACisyMDEyLTExLTA3ICBVbGFu IERlZ2VuYmFldiAgPHVsYW5AY2hyb21pdW0ub3JnPgorCisgICAgICAgIFtWOF0gV2ViS2l0IHNl bmRzIHVubmVjZXNzYXJ5IGxvdyBtZW1vcnkgbm90aWZpY2F0aW9uIHdoZW4gcnVubmluZyBtZW1v cnkgYmVuY2htYXJrcworICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5j Z2k/aWQ9MTAxNDc0CisKKyAgICAgICAgUmV2aWV3ZWQgYnkgTk9CT0RZIChPT1BTISkuCisKKyAg ICAgICAgRG8gbm90IHNlbmQgbG93IG1lbW9yeSBub3RpZmljYXRpb24gdG8gVjggd2hlbiBtb3N0 IG9mIG1lbW9yeSB1c2FnZQorICAgICAgICBjb21lcyBmcm9tIFY4IGhlYXAgYW5kIG5vdCBET00g 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