75632 2012-01-05 10:49:08 -0800 [Chromium] Avoid unnecessary TextureManager::reduceMemoryToLimit() 2012-01-09 12:17:04 -0800 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED P2 Normal --- 72078 1 wangxianzhu wangxianzhu cc-bugs enne jamesr nduca webkit.review.bot oldest_to_newest 530427 0 wangxianzhu 2012-01-05 10:49:08 -0800 (Split from bug 72078) Unnecessary TextureManager::reduceMemoryToLimit() will cause some tile textures that are required soon to be unnecessarily removed/replaced, when required texture memory is higher than the reclaim limit but lower than the absolute limit. This will and degrade performance, sometimes significantly. For example, CCLayerTreeHost::setViewport will be called during scrolling. The original code would call TextureManager::reduceMemoryToLimit(), causing some textures unnecessarily discarded and then recreated repeatedly during scrolling. It's also unnecessary to call TextureManager::reduceMemoryToLimit() from TextureManager::setPreferredMemoryLimitBytes() because the limit is not a hard limit. The callers should call reduceMemoryToLimit() explicitly if it wants it when setting the preferred memory limit. 530805 1 121372 wangxianzhu 2012-01-05 17:13:48 -0800 Created attachment 121372 patch (updated based on the patch in bug 72078) 531338 2 enne 2012-01-06 13:33:14 -0800 Nice catch. Calling reduceMemoryToLimit when setting limits really seems like the wrong thing to be doing. 531549 3 121372 jamesr 2012-01-06 17:54:27 -0800 Comment on attachment 121372 patch (updated based on the patch in bug 72078) R=me, great tests! Set cq? when you're ready for this to land. 532248 4 121372 wangxianzhu 2012-01-09 09:51:27 -0800 Comment on attachment 121372 patch (updated based on the patch in bug 72078) Thanks for review. Try to cq+ by myself. 532410 5 121372 webkit.review.bot 2012-01-09 12:16:59 -0800 Comment on attachment 121372 patch (updated based on the patch in bug 72078) Clearing flags on attachment: 121372 Committed r104474: <http://trac.webkit.org/changeset/104474> 532411 6 webkit.review.bot 2012-01-09 12:17:04 -0800 All reviewed patches have been landed. Closing bug. 121372 2012-01-05 17:13:48 -0800 2012-01-09 12:16:59 -0800 patch (updated based on the patch in bug 72078) 75632 text/plain 27517 wangxianzhu SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDEwNDIzMikKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDM4IEBACisyMDEyLTAxLTA1ICBYaWFuemh1 IFdhbmcgIDx3YW5neGlhbnpodUBjaHJvbWl1bS5vcmc+CisKKyAgICAgICAgQXZvaWQgdW5uZWNl c3NhcnkgVGV4dHVyZU1hbmFnZXI6OnJlZHVjZU1lbW9yeVRvTGltaXQoKS4KKyAgICAgICAgaHR0 cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTc1NjMyCisKKyAgICAgICAgVW5u ZWNlc3NhcnkgVGV4dHVyZU1hbmFnZXI6OnJlZHVjZU1lbW9yeVRvTGltaXQoKSB3aWxsIGNhdXNl IHNvbWUgdGlsZQorICAgICAgICB0ZXh0dXJlcyB0aGF0IGFyZSByZXF1aXJlZCBzb29uIHRvIGJl IHVubmVjZXNzYXJpbHkgcmVtb3ZlZC9yZXBsYWNlZCwKKyAgICAgICAgYW5kIGRlZ3JhZGUgcGVy 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