Bug 38194 - SWT performance issues with JAWS 4.5
Summary: SWT performance issues with JAWS 4.5
Status: RESOLVED FIXED
Alias: None
Product: Platform
Classification: Eclipse Project
Component: SWT (show other bugs)
Version: 2.1   Edit
Hardware: PC Windows 2000
: P3 normal (vote)
Target Milestone: ---   Edit
Assignee: Carolyn MacLeod CLA
QA Contact:
URL:
Whiteboard:
Keywords: accessibility
Depends on:
Blocks:
 
Reported: 2003-05-28 10:42 EDT by Tod Creasey CLA
Modified: 2004-02-11 17:19 EST (History)
4 users (show)

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Description Tod Creasey CLA 2003-05-28 10:42:41 EDT
This is a split off from Bug 36493.

Under JAWS 4.5 the performance of SWT is very slow. Under 4.0 this was not an 
issue.

I am running XP and there appears to be greater performance 
issues in 2k than on XP (Matt King has played his JAWS over the phone for me 
on 2K).

Creation of widgets in particular can be very bad as we see this the most when 
cruising the preference dialog or switching to a perspective for the first 
time.
Comment 1 Felipe Heidrich CLA 2003-05-28 11:10:15 EDT
VI to advise.
Comment 2 Veronika Irvine CLA 2003-10-16 09:15:53 EDT
SWT still waiting to get a JAWS 4.5 license
Comment 3 Carolyn MacLeod CLA 2003-12-08 13:58:28 EST
I now have JAWS 5.0, and it appears to have the same performance issues as 
JAWS 4.5.  I will try to figure out what has changed from 4.0.

I also have a copy of Window-Eyes 4.5, and although running Window-Eyes 
definitely does slow down SWT performance, it is markedly better than JAWS 5.0 
(JAWS seems to almost hang the system at times). I have talked to a software 
developer from Window-Eyes, and he says they have to monitor all TextOut 
calls, which is a tall order, and definitely one of the reasons why screen 
reader programs slow down the entire system. (The other is that they need to 
be notified of every focus change event).
Comment 4 Frank DiPalermo CLA 2004-02-11 15:07:57 EST
Freedom Scientific released an upgrade for JAWS 5.0 today.  This upgrade 
includes the code that gets rid of the sluggishness we were seeing in Eclipse 
with 4.51 and 5.0.  Anyone, who is authorized for 5.0 can download the upgrade 
from:
http://www.freedomscientific.com/fs_products/software_jaws5intro.asp
I think this problem is now solved.
Comment 5 Carolyn MacLeod CLA 2004-02-11 17:19:10 EST
Tried running with the new JAWS 5.0 upgrade (5.00.809).
I see SIGNIFICANT performance improvements.
EVERYTHING is snappier - startup (JAWS and eclipse), switching perspectives, 
widget creation, opening dialogs...
I am closing this bug report, and I recommend that everyone upgrade to JAWS 
5.00.809.