Bug 143447 - Chalkboard is very slow on Mac-Book-Pro relative to Mac when running with the same window size
Summary: Chalkboard is very slow on Mac-Book-Pro relative to Mac when running with the...
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: SVG (show other bugs)
Version: 528+ (Nightly build)
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords: InRadar
Depends on:
Blocks:
 
Reported: 2015-04-06 11:16 PDT by Said Abou-Hallawa
Modified: 2015-05-04 10:49 PDT (History)
2 users (show)

See Also:

Attachments
Mac profile (692.29 KB, application/zip)
2015-04-06 11:18 PDT, Said Abou-Hallawa 		no flags Details
iMacBook profiling (749.38 KB, application/zip)
2015-04-06 11:23 PDT, Said Abou-Hallawa 		no flags Details
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Description Said Abou-Hallawa 2015-04-06 11:16:40 PDT 
On Mac

Safari: takes 7.27 seconds.
Chrome: takes 21.13 seconds.

On iMacBook

Safari: takes 76.77 seconds.
Chrome: takes 46.97 seconds.

There should be something related to the CG on iMac-Book and how it measures/renders graphical items on the screen.
Comment 1 Said Abou-Hallawa 2015-04-06 11:18:03 PDT 
Created attachment 250211 [details]
Mac profile

Profling results from the Mac machine with window size 1920x1070.
Comment 2 Said Abou-Hallawa 2015-04-06 11:23:45 PDT 
Created attachment 250213 [details]
iMacBook profiling

Profiling results from the iMacBook machine with window size 1920-1090.
Comment 3 Radar WebKit Bug Importer 2015-04-06 11:25:19 PDT 
<rdar://problem/20436152>