167324 2017-01-23 14:26:30 -0800 Maintain ordering when doing speculative loads 2017-02-01 06:02:02 -0800 1 1 1 Unclassified WebKit Page Loading WebKit Nightly Build Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 1 koivisto webkit-unassigned beidson cdumez cgarcia commit-queue webkit-bug-importer oldest_to_newest 1269183 0 koivisto 2017-01-23 14:26:30 -0800 Currently we randomize the ordering of speculative loads because they are serialized as a hash map. It would be better to load in the same order as the requests were originally issued as that is likely to match the order the document needs them. 1269187 1 299539 koivisto 2017-01-23 14:31:35 -0800 Created attachment 299539 patch 1269198 2 299539 cdumez 2017-01-23 14:53:33 -0800 Comment on attachment 299539 patch View in context: https://bugs.webkit.org/attachment.cgi?id=299539&action=review r=me > Source/WebKit2/NetworkProcess/cache/NetworkCacheSubresourcesEntry.cpp:109 > + Vector<SubresourceInfo> result; I think we should reserveInitialCapacity() and uncheckedAppend() since we know there will be at most subresourceLoads.size() items and the common case will be subresourceLoads.size() items. > Source/WebKit2/NetworkProcess/cache/NetworkCacheSubresourcesEntry.h:49 > + , m_requestHeaders(request.httpHeaderFields()) It is a bit unfortunate that we are now copying those HashMaps for transient resources too now. I hope this does not show on PLT. 1269288 3 koivisto 2017-01-23 17:39:00 -0800 https://trac.webkit.org/changeset/211068 1269298 4 299539 darin 2017-01-23 18:02:28 -0800 Comment on attachment 299539 patch View in context: https://bugs.webkit.org/attachment.cgi?id=299539&action=review >> Source/WebKit2/NetworkProcess/cache/NetworkCacheSubresourcesEntry.cpp:109 >> + Vector<SubresourceInfo> result; > > I think we should reserveInitialCapacity() and uncheckedAppend() since we know there will be at most subresourceLoads.size() items and the common case will be subresourceLoads.size() items. The patch landed with a call to reserveCapacity/append, but reserveInitialCapacity/uncheckedAppend are more efficient. 1269338 5 koivisto 2017-01-23 21:36:58 -0800 Oops! 1269342 6 koivisto 2017-01-23 22:03:30 -0800 Did that in https://trac.webkit.org/r211076 1272120 7 webkit-bug-importer 2017-02-01 06:02:02 -0800 <rdar://problem/30306314> 299539 2017-01-23 14:31:35 -0800 2017-01-23 14:53:33 -0800 patch cache-speculative-ordering.patch text/plain 7918 koivisto SW5kZXg6IFNvdXJjZS9XZWJLaXQyL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi S2l0Mi9DaGFuZ2VMb2cJKHJldmlzaW9uIDIxMTA2MSkKKysrIFNvdXJjZS9XZWJLaXQyL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDM2IEBACisyMDE3LTAxLTIzICBBbnR0aSBL b2l2aXN0byAgPGFudHRpQGFwcGxlLmNvbT4KKworICAgICAgICBNYWludGFpbiBvcmRlcmluZyB3 aGVuIGRvaW5nIHNwZWN1bGF0aXZlIGxvYWRzCisgICAgICAgIGh0dHBzOi8vYnVncy53ZWJraXQu 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