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NeoOffice :: View topic - High CPU Use When Mouse Scrolling
High CPU Use When Mouse Scrolling
 
   NeoOffice Forum Index -> NeoOffice Releases
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narf
The Anomaly


Joined: Jan 21, 2007
Posts: 1075

PostPosted: Fri Jul 23, 2010 10:22 pm    Post subject:

pluby wrote:
I will look at our code and see if there are any speed bottlenecks in our code that we can eliminate.


I have creating bug 3620 to track this issue.

Fran
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noibs
Sentinel


Joined: Dec 09, 2006
Posts: 22

PostPosted: Sat Jul 24, 2010 7:56 am    Post subject: Thank you

Thanks for all the attention to this issue.
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pluby
The Architect
The Architect


Joined: Jun 16, 2003
Posts: 11949

PostPosted: Sat Jul 24, 2010 6:53 pm    Post subject:

I have implemented some changes to optimize the code that handles glyph dimension queries. With my changes, CPU usage only goes above 50% if I really flood NeoOffice with scrollbar clicks. More importantly, moving through your sample document appears to be much snappier for me.

Can you install the following test patch and tell us if CPU usage has been reduced for you when using the scroll wheel?:

Intel:
http://joe.neooffice.org/test/NeoOffice-3.1.1-Patch-1-Test-16-Intel.dmg

PowerPC:
http://joe.neooffice.org/test/NeoOffice-3.1.1-Patch-1-Test-16-PowerPC.dmg

Patrick
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noibs
Sentinel


Joined: Dec 09, 2006
Posts: 22

PostPosted: Sun Jul 25, 2010 7:23 pm    Post subject: Worked

I applied the patch and it reduced maximum CPU activity significantly, as you said. With realistically fast scrolling, Activity Monitor indicated 40% or less. That's equivalent to the latest version of OpenOffice.

For anyone just checking into this forum thread, even with mouse scroll speed set to the maximum under Mac OS X 10.6.X, using a regular scroll wheel mouse in OpenOffice is painful because of the SUPER SLOW page scrolling in word processing documents. That is NOT the case when using NeoOffice. It is also not the case with OpenOffice under Windoze.
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pluby
The Architect
The Architect


Joined: Jun 16, 2003
Posts: 11949

PostPosted: Mon Aug 09, 2010 1:54 pm    Post subject:

FYI. I have included the fix in NeoOffice 3.1.1 Patch 2. The patch can be downloaded from the NeoOffice patch download page.

Patrick
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