167980 2017-02-08 02:32:42 -0800 [GTK] Reduce TiledBackingStore tile coverage when on memory pressure state 2017-02-08 04:20:42 -0800 1 1 1 Unclassified WebKit WebKitGTK WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED P2 Normal --- 1 magomez magomez bugs-noreply cmarcelo commit-queue kondapallykalyan luiz noam oldest_to_newest 1274290 0 magomez 2017-02-08 02:32:42 -0800 Currently we use a hardcoded coverAreaMultiplier value of 2 in the TiledBackingStore, which means that the area we fill with tiles has up to 2 times the size of the visible area. While this is nice to make scrolling smoother, we are using more memory than needed to render the visible contents of layers (1 extra MB per tile). When we are in memory pressure situation, we can reduce that value to use less tiles and improve the memory consumption. 1274291 1 300885 magomez 2017-02-08 02:39:10 -0800 Created attachment 300885 Patch 1274295 2 300885 cgarcia 2017-02-08 02:44:20 -0800 Comment on attachment 300885 Patch View in context: https://bugs.webkit.org/attachment.cgi?id=300885&action=review > Source/WebCore/platform/graphics/texmap/coordinated/TiledBackingStore.cpp:148 > +void TiledBackingStore::createTiles(const IntRect& visibleRect, const IntRect& scaledContentsRect, const float coverAreaMultiplier) I don't think that const is needed for a float parameter passed by value, no? 1274296 3 300887 magomez 2017-02-08 03:09:04 -0800 Created attachment 300887 Patch 1274303 4 300887 commit-queue 2017-02-08 04:20:37 -0800 Comment on attachment 300887 Patch Clearing flags on attachment: 300887 Committed r211867: <http://trac.webkit.org/changeset/211867> 1274304 5 commit-queue 2017-02-08 04:20:42 -0800 All reviewed patches have been landed. Closing bug. 300885 2017-02-08 02:39:10 -0800 2017-02-08 03:08:57 -0800 Patch bug-167980-20170208113646.patch text/plain 4131 magomez U3VidmVyc2lvbiBSZXZpc2lvbjogMjExODU0CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZmZkOWE5YmE3NjQzMzcx ZGI5MzU2YmQ5ZDVjNGE0MThmMzg3ZmZlOS4uYzA3ZTc5OTU4ZDUwYmIxMTczZTQ4MzYwM2IzZWQ0 MDNkYWYzZmI3MiAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDIwIEBACisyMDE3LTAyLTA4ICBNaWd1 ZWwgR29tZXogIDxtYWdvbWV6QGlnYWxpYS5jb20+CisKKyAgICAgICAgW0dUS10gUmVkdWNlIFRp bGVkQmFja2luZ1N0b3JlIHRpbGUgY292ZXJhZ2Ugd2hlbiBvbiBtZW1vcnkgcHJlc3N1cmUgc3Rh dGUKKyAgICAgICAgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTE2Nzk4 MAorCisgICAgICAgIFJldmlld2VkIGJ5IE5PQk9EWSAoT09QUyEpLgorCisgICAgICAgIFVzZSBh IHNtYWxsZXIgY292ZXJBcmVhTXVsdGlwbGllciBpbiB0aGUgVGlsZWRCYWNraW5nU3RvcmUgd2hl biBpbiBtZW1vcnkgcHJlc3N1cmUgc2l0dWF0aW9uLCB0byByZWR1Y2UKKyAgICAgICAgdGhlIGFt 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