Attachment 371610 Details for Bug 198382 – Patch

[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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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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