Bug 105362 - CSS Regions slow
Summary: CSS Regions slow
Status: RESOLVED FIXED
Alias: None
Product: WebKit
Classification: Unclassified
Component: Web Inspector (Deprecated) (show other bugs)
Version: 528+ (Nightly build)
Hardware: All All
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks: 57312
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Reported: 2012-12-18 16:22 PST by Johannes Wilm
Modified: 2013-05-23 15:24 PDT (History)
10 users (show)

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Description Johannes Wilm 2012-12-18 16:22:46 PST 
When many regions are used on the same same page, they are slowing the page down considerably.

Check http://sourcefabric.github.com/BookJS/test.html for a simple demo. 

Check http://sourcefabric.github.com/BookJS/test2.html for a demo of lots of flows.

Check http://sourcefabric.github.com/BookJS/test3.html for a demo of long flows.
Comment 1 Mihai Balan 2013-05-17 05:12:44 PDT 
Could you please retest this with a newer Chromium? There's been some performance patches that landed in WebKit/Blink in this area.
Comment 2 Johannes Wilm 2013-05-23 15:24:20 PDT 
This seems to have been resolved with recent improvements