28676 2009-08-24 02:10:34 -0700 Safari 4 not releasing memory back to the operating system 2010-06-11 10:12:08 -0700 1 1 1 Unclassified WebKit New Bugs 528+ (Nightly build) PC Windows XP ASSIGNED http://farm3.static.flickr.com/2552/3851167461_d56de44d47_o.png InRadar P2 Normal --- 1 jaffathecake ggaren adachan dglazkov eric ggaren gustavo mjs webkit.review.bot xan.lopez oldest_to_newest 142292 0 jaffathecake 2009-08-24 02:10:34 -0700 Once Safari has claimed memory from the operating system, it doesn't seem to give it back, even though it's no longer using it. Running the first test on the following page http://www.jakearchibald.co.uk/jsperformance/closurememory/1.html, this creates a 1mb string every second. http://www.flickr.com/photos/jaffathecake/3851167461/sizes/o/ Chrome (and other browsers) release the memory back to the operating system when the test is ended, whereas Safari keeps it, even if the tab is closed. Safari will reuse the memory it has reserved, but it doesn't give it back to the operating system, even if it has claimed 700mb+. 142293 1 jaffathecake 2009-08-24 02:35:54 -0700 This is an issue in 526 (not tested the nightly builds) but the option wasn't available. Not sure which component this should be part of either. 142368 2 mrowe 2009-08-24 12:32:03 -0700 Please test in a nightly build. The memory allocator used by Safari on Windows has been improved so that memory is returned to the OS at a more aggressive rate. 142411 3 jaffathecake 2009-08-24 14:11:10 -0700 http://farm3.static.flickr.com/2554/3853034847_806c897794_o.png The above is the same test in a nightly build downloaded today. Although it starts releasing memory, it's not at a useful rate. In this test (and previous tests) one pixel on the graph == 1 second. 142422 4 mrowe 2009-08-24 14:53:40 -0700 <rdar://problem/7165917> 177308 5 ggaren 2010-01-05 12:34:24 -0800 *** Bug 22275 has been marked as a duplicate of this bug. *** 191306 6 48950 ggaren 2010-02-17 17:09:43 -0800 Created attachment 48950 patch 191309 7 eric 2010-02-17 17:12:08 -0800 Attachment 48950 did not build on mac: Build output: http://webkit-commit-queue.appspot.com/results/278140 191310 8 webkit.review.bot 2010-02-17 17:13:31 -0800 Attachment 48950 did not pass style-queue: Failed to run "WebKitTools/Scripts/check-webkit-style" exit_code: 1 JavaScriptCore/wtf/FastMalloc.cpp:1501: TCMalloc_PageHeap::scavenge is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Total errors found: 1 If any of these errors are false positives, please file a bug against check-webkit-style. 191312 9 webkit.review.bot 2010-02-17 17:15:36 -0800 Attachment 48950 did not build on chromium: Build output: http://webkit-commit-queue.appspot.com/results/279134 191324 10 webkit.review.bot 2010-02-17 17:37:29 -0800 Attachment 48950 did not build on qt: Build output: http://webkit-commit-queue.appspot.com/results/279154 191347 11 webkit.review.bot 2010-02-17 18:26:15 -0800 Attachment 48950 did not build on gtk: Build output: http://webkit-commit-queue.appspot.com/results/280012 191349 12 48950 oliver 2010-02-17 18:27:51 -0800 Comment on attachment 48950 patch you have removed two #endifs but only one #if this would break stuff 191438 13 48978 ggaren 2010-02-18 00:00:47 -0800 Created attachment 48978 patch Now with more buildy goodness. 191443 14 webkit.review.bot 2010-02-18 00:04:47 -0800 Attachment 48978 did not pass style-queue: Failed to run "WebKitTools/Scripts/check-webkit-style" exit_code: 1 JavaScriptCore/wtf/FastMalloc.cpp:1503: TCMalloc_PageHeap::scavenge is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] Total errors found: 1 in 2 files If any of these errors are false positives, please file a bug against check-webkit-style. 191713 15 48978 oliver 2010-02-18 13:32:36 -0800 Comment on attachment 48978 patch r=me 191735 16 ggaren 2010-02-18 14:19:40 -0800 Fixed that edge case: Committed revision 54988. Still analyzing other causes. Clearing review flag. 198948 17 50579 ggaren 2010-03-11 23:44:10 -0800 Created attachment 50579 patch Fixed a bug where the old code would release only one item from each size class per scavenge, potentially leaving large numbers of large-sized objects unreleased for a long time. 198949 18 webkit.review.bot 2010-03-11 23:48:13 -0800 Attachment 50579 did not pass style-queue: Failed to run "WebKitTools/Scripts/check-webkit-style" exit_code: 1 JavaScriptCore/wtf/FastMalloc.cpp:1385: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1386: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1387: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1387: min_free_committed_pages_since_last_scavenge_ is incorrectly named. Don't use underscores in your identifier names. [readability/naming] [4] JavaScriptCore/wtf/FastMalloc.cpp:1432: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1438: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1464: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1507: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1517: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1518: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:1525: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] JavaScriptCore/wtf/FastMalloc.cpp:2401: Weird number of spaces at line-start. Are you using a 4-space indent? [whitespace/indent] [3] Total errors found: 12 in 2 files If any of these errors are false positives, please file a bug against check-webkit-style. 198960 19 webkit.review.bot 2010-03-12 00:49:21 -0800 Attachment 50579 did not build on gtk: Build output: http://webkit-commit-queue.appspot.com/results/631033 198961 20 webkit.review.bot 2010-03-12 01:01:19 -0800 Attachment 50579 did not build on qt: Build output: http://webkit-commit-queue.appspot.com/results/664010 199959 21 ggaren 2010-03-15 19:23:21 -0700 Committed revision 56028. Still analyzing other causes. 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