65306 2011-07-28 00:34:05 -0700 WebKitInitializeStorageIfNecessary() can take awhile performing i/o, isn't necessary for every WebView 2011-07-28 11:29:36 -0700 1 1 1 Unclassified WebKit WebCore Misc. 528+ (Nightly build) All All RESOLVED FIXED InRadar P2 Normal --- 65308 1 beidson beidson joepeck oldest_to_newest 443381 0 beidson 2011-07-28 00:34:05 -0700 WebKitInitializeStorageIfNecessary() can take awhile performing i/o, isn't necessary for every WebView Right now we blindly call WebKitInitializeStorageIfNecessary the moment the first WebView is created. Since it can do some (sync) i/o, this can be a waste of time if storage tracking will never be needed (APIs aren't called, or LocalStorage is never used). There's room to make it better by making it asynchronously initialize on a background thread, but in the meantime let's defer it until it's actually needed. In radar as <rdar://problem/9714337> 443385 1 beidson 2011-07-28 00:38:47 -0700 By moving the "one time initialization" code into StorageTracker::tracker(), this ensures that the initialization will take place: 1 - Before anyone in WebCore needs to use the shared StorageTracker object 2 - Before any API in WebKit/WebKit2 needs to use the shared StorageTracker object 443394 2 beidson 2011-07-28 00:46:38 -0700 Filed https://bugs.webkit.org/show_bug.cgi?id=65308 since I noticed that StorageTracker::setClient() and the associated client guard mutex are pretty much irrelevant. 443396 3 102240 beidson 2011-07-28 00:59:17 -0700 Created attachment 102240 Patch v1 - Move the hefty work from StorageTracker::initializeTracker() until the first time the global tracker is actually accessed. 443406 4 102240 mjs 2011-07-28 01:44:06 -0700 Comment on attachment 102240 Patch v1 - Move the hefty work from StorageTracker::initializeTracker() until the first time the global tracker is actually accessed. r=me 443506 5 beidson 2011-07-28 08:33:12 -0700 http://trac.webkit.org/changeset/91931 443568 6 102240 joepeck 2011-07-28 11:21:08 -0700 Comment on attachment 102240 Patch v1 - Move the hefty work from StorageTracker::initializeTracker() until the first time the global tracker is actually accessed. View in context: https://bugs.webkit.org/attachment.cgi?id=102240&action=review > Source/WebCore/storage/StorageTracker.h:115 > + bool m_isInitialized; What value does this boolean add, or is there more planned for it in the future? 443576 7 beidson 2011-07-28 11:29:36 -0700 (In reply to comment #6) > (From update of attachment 102240 [details]) > View in context: https://bugs.webkit.org/attachment.cgi?id=102240&action=review > > > Source/WebCore/storage/StorageTracker.h:115 > > + bool m_isInitialized; > > What value does this boolean add, or is there more planned for it in the future? Initialization has to be separate from construction - that's the purpose of the patch. There is one case where we construct a "dummy" tracker and immediately initialize it, but in the StorageTracker::initializeTracker(const String&, StorageTrackerClient*) case, we construct with the intent to initialize later. 102240 2011-07-28 00:59:17 -0700 2011-07-28 11:21:07 -0700 Patch v1 - Move the hefty work from StorageTracker::initializeTracker() until the first time the global tracker is actually accessed. patch.txt text/plain 9518 beidson SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDkxOTEzKQorKysgU291cmNlL1dlYkNvcmUvQ2hhbmdl TG9nCSh3b3JraW5nIGNvcHkpCkBAIC0xLDMgKzEsMjggQEAKKzIwMTEtMDctMjggIEJyYWR5IEVp ZHNvbiAgPGJlaWRzb25AYXBwbGUuY29tPgorCisgICAgICAgIDxyZGFyOi8vcHJvYmxlbS85NzE0 MzM3PiBhbmQgaHR0cHM6Ly9idWdzLndlYmtpdC5vcmcvc2hvd19idWcuY2dpP2lkPTY1MzA2Cisg ICAgICAgIFdlYktpdEluaXRpYWxpemVTdG9yYWdlSWZOZWNlc3NhcnkoKSBjYW4gdGFrZSBhd2hp 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