[ubuntu-x] -intel 2.6.3 uploaded

[Khashayar Naderehvandi]

On Mon, Mar 23, 2009 at 11:12 PM, Bryce Harrington <bryce at canonical.com> wrote:
> On Mon, Mar 23, 2009 at 09:49:38PM +0000, Peter Clifton wrote:
>> On Mon, 2009-03-23 at 13:12 -0700, Bryce Harrington wrote:
>> > For those of you who have tested UXA, now that -intel 2.6.3 has been in
>> > the archive a few days, what are your thoughts on it compared with the
>> > default EXA?
>>
Well, for me things are much better with UXA (on g45), except for one
thing, which in fact is a show stopper. Namely, the issue that a
suspend/resume cycle while either compiz or composited kwin is active,
2 out of 3 times crashes the server and leaves me at the login window.
So I'd vote for EXA, although performance is pretty crappy with it.

>> I noted this blog post today:
>>
>> http://jasondclinton.livejournal.com/72910.html
>>
>> And it seems that the cpufreq governer being broken causes low fps / 3D
>> performance. I seem to recall some kernel fixes in Jaunty to reinstate
>> the ondemand governor. Perhaps my brief spell with no proper CPU
>> governor corresponded to the increased FPS.
>>
>> (Setting the "performance" governor rather than "ondemand" pushes my
>> "not a benchmark" glxgears numbers from about 560fps to about 880fps.)
>
> Hey, that's interesting.  That could also explain why people with
> exactly the same graphics chipsets are reporting drastically varying
> performance results.
>
> Anyone else with -intel performance troubles see it go away if switching
> from ondemand to performance?
>
I came across that blog post as well and found it interesting. It
helps performance a little to follow the advice on that blog post when
running games and the likes. But when I'm talking about reduced
performance, I'm always talking about compiz and/or composited kwin.
That is, normal everyday stuff that should be running fine without the
performance governor. And with EXA normal desktop usage is OK, but not
great. It should be much better with a g45.

> Bryce
>
K.