Desktop Performance Tuning?

Bruce Cran bruce at
Fri Feb 8 23:22:47 UTC 2008

Dominic Fandrey wrote:
> Bruce Cran wrote:
>> Wojciech Puchar wrote:
>>>> disabling SMP, but it didn't help.
>>>> There have been threads on the stable list about jerky  mouse
>>>> performance, which may be part of this, but I have really followed it
>>>> closely. I'm also wondering whether this might be due to some xorg or
>>>> other port change from late 2007 that I only noticed when I started
>>>> doing a lot of rebuilding under 7-stable.
>>> does it lag when doing disk I/O or just any case?
>> I think it's disk I/O: even doing a cvsup makes the desktop start 
>> lagging on my Athlon XP UP system.
> Does setting debug.vfscache=0 make any difference?

Setting debug.vfscache=0 doesn't seem to help.   The issue only seems to 
occur when I'm running the buildworld within a terminal in Xorg.  I 
think it may be a contention issue with the 'nvidia' driver since during 
certain phases of the buildworld I often see top saying something's 
waiting on a lock - and I've spotted nvidia0 waiting on Giant a few 
times.   I'll test using the nv driver instead and see if the problem 
still occurs.



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