WebKit Bugzilla
Attachment 371610 Details for
Bug 198382
: REGRESSION (r245396): Page load time performance regression
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[patch]
Patch
bug-198382-20190607171658.patch (text/plain), 1.37 KB, created by
Ali Juma
on 2019-06-07 14:16:59 PDT
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Patch
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Creator:
Ali Juma
Created:
2019-06-07 14:16:59 PDT
Size:
1.37 KB
patch
obsolete
>Subversion Revision: 246132 >diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog >index a7adf6cdc4d392b58216ba38109b3d1ba0c12399..a19436c492ea473e9b3e591546875f61ea73434a 100644 >--- a/Source/WebCore/ChangeLog >+++ b/Source/WebCore/ChangeLog >@@ -1,3 +1,17 @@ >+2019-06-07 Ali Juma <ajuma@chromium.org> >+ >+ REGRESSION (r245396): Page load time performance regression >+ https://bugs.webkit.org/show_bug.cgi?id=198382 >+ >+ Reviewed by NOBODY (OOPS!). >+ >+ Use a delay of 2000ms instead of 500ms when scheduling rendering updates >+ for IntersectionObserver targets added during page load. This is a >+ speculative fix for a page load time regression caused by r245396 and >+ still not fixed after r245958. >+ >+ * dom/Document.cpp: >+ > 2019-06-05 Alex Christensen <achristensen@webkit.org> > > Revert part of r246126 >diff --git a/Source/WebCore/dom/Document.cpp b/Source/WebCore/dom/Document.cpp >index ea6ba533986725f7aed6c94f3819737d9a096830..ccf1f15600d02b8d3d83537a924b86d8470f56b4 100644 >--- a/Source/WebCore/dom/Document.cpp >+++ b/Source/WebCore/dom/Document.cpp >@@ -353,7 +353,7 @@ private: > }; > > #if ENABLE(INTERSECTION_OBSERVER) >-static const Seconds intersectionObserversInitialUpdateDelay { 500_ms }; >+static const Seconds intersectionObserversInitialUpdateDelay { 2000_ms }; > #endif > > // DOM Level 2 says (letters added):
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bug 198382
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370968
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370992
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371610
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371631
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371745