Bug 155309 - build.webkit.org/waterfall scrolling is noticeably slower in WebKit/Safari than Chrome
Summary: build.webkit.org/waterfall scrolling is noticeably slower in WebKit/Safari th...
Status: RESOLVED MOVED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Layout and Rendering (show other bugs)
Version: WebKit Nightly Build
Hardware: Mac Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2016-03-10 11:35 PST by Dean Johnson
Modified: 2016-03-10 11:59 PST (History)
4 users (show)

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Description Dean Johnson 2016-03-10 11:35:56 PST 
Similar issues can also be seen trying to load a build log such as here: https://build.webkit.org/builders/Apple%20El%20Capitan%20Release%20(Build)/builds/4401/steps/compile-webkit/logs/stdio
You'll notice when scrolling on the page that the screen will go white (not rendering quick enough?) in Safari, but not at all or much less in Chrome.

Sorry if the component is incorrect.

Oddly enough, this issue doesn't seem to present itself on iOS.
Comment 1 Radar WebKit Bug Importer 2016-03-10 11:36:32 PST 
<rdar://problem/25090185>
Comment 2 Brady Eidson 2016-03-10 11:47:21 PST 
The data is getting there just fine. This is possibly (likely?) a tiled scrolling issue?
Comment 3 Simon Fraser (smfr) 2016-03-10 11:52:29 PST 
The slow build logs are a known issue with large amounts text.

The waterfall being slow is likely different, possibly table rendering.
Comment 4 Simon Fraser (smfr) 2016-03-10 11:59:00 PST 
This is a Safari bug, not a WebKit bug. Lots of time in form autofill.