[Smaug] X running slow?

[Meg McRoberts]

I confess to ignorance about video cards -- I guess that shows
that I'm not a gamer, eh?  ;-)  Anyhow, I get NO as a response
to the glxinfo command below.  How do I determine what video
card I have and what should I do?

Thanks!

--- cerise at armory.com wrote:

> You can probably make a significant improvement in the rendering department.
> What sort of video card do you have?  Does it have DRI?  Do you have 3D
> acceleration turned on (glxinfo | grep '^direct' should give a "yes")?
> 
> -Phil/CERisE
> 
> On Wed, Nov 09, 2005 at 04:41:56PM -0800, Meg McRoberts wrote:
> > Something else to check is whether your configuration runs
> > better with DMA on or off.  It seems to be off by default
> > for most configurations -- I'm still trying to wrap my
> > head around the variations...
> > 
> > Anyhow, run hdparm -t /dev/hda to time the buffered disk
> > reads.  Then run hdparm -d 1 /dev/hda to turn on dma and
> > run the hdparm -t test again -- compare the numbers and
> > see which is faster.
> > 
> > On my system, the performance went from 14MB in 3.73 seconds
> > to 120MB in 3.73 seconds -- fairly significant.
> > 
> > If your system is faster with dma on, edit the
> > /etc/sysconfig/harddisks file and change the DMA parameter --
> > I forget exactly what it is but if you search for DMA,
> > you'll find it.
> > 
> > There was a good article in one of the online journals a
> > couple months ago that suggested this and some other
> > tunings.  I haven't had as dynamic results with the
> > others but I'm still studying -- my performance for
> > Firefox seems to degrade after a few days...  I know,
> > if I'd do the Windows thing and reboot a couple times
> > day, I wouldn't have this problem ;-)
> > 
> > Someone at work has been playing with TCP tunings also
> > and finding that it buys him a lot -- the defaults have
> > to be set to work for dial-up lines and really old
> > modems.  If anyone is interested, I can dig out the
> > recommendations he has.
> > 
> > meg
> > 
> > --- Peter Belew <abcruzww at gmail.com> wrote:
> > 
> > > Some tools to look at what's going on with memory would
> > > be 'top' and 'vmstat' .... also look at /proc/meminfo .
> > > 
> > >  Peter
> > > 
> > > On 11/9/05, james sheldon <jsheldon at ucsc.edu> wrote:
> > > >
> > > > I'm running the latest version of ubuntu, and X seems really slow on my
> > > > computer, which runs XP fairly decently.  Any thoughts as to how I might
> > > > optimize X-windows?
> > > >
> > > > -James
> > > >
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