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Old 02-26-2007, 06:40 PM   #1
phyrko
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Registered: Jul 2004
Location: Glasgow, UK
Distribution: Ubuntu 6.10, FC5
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Performance tweaks? Video playback and the X Server


Hi, I am running an FC5 box with 1.25GB of RAM and an Athlon 2400. I can't imagine that this would come under the category of a low spec'ed machine but I have had issues with the performance for some time.

The problem seems to come whenever I want to do anything involving video playback: when I try to play a DVD with ogle I get jerky video; when I try to play a DVD with Xine I get 'too many frames dropped' errors; watching digital TV with mplayer is a painful experience due to channel tuning time.

Admittedly I have Azureus running in the background which eats around 4% of CPU time but as my flatmate keeps cajoling me - these things would run fine on that system with another, more popular OS. I certainly am not going to revert to that sort of extreme measure but it disappoints me that I haven't been able to at least replicate the performance of a windoze machine.

What am I doing wrong? Is it because I use rpms and not apps compiled from source? Is it just a limitation of the X Server architecture? If I was to upgrade to FC6 tomorrow, what measures should I take to ensure that I maxed out the performance (video or otherwise) of the machine?

Hope to hear some suggestions!

Thanks
 
Old 02-28-2007, 02:07 AM   #2
kutty_prasad
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Registered: Sep 2006
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What display card are you using?. Also if it's an on-board card, that might be an issue.
 
Old 02-28-2007, 03:29 AM   #3
phyrko
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It's an nvidia MX400, not an onboard card.

Last edited by phyrko; 02-28-2007 at 03:39 AM.
 
Old 02-28-2007, 10:07 AM   #4
glussier
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Registered: Jul 2005
Location: Montreal, Qc, Canada
Distribution: Fedora Core 5/6 Slackware 10.1/11
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If you install the nvidia drivers, you will probably get the performance you are looking for. Here's an easy way to get the nvidia drivers installed in fedora core5: http://stanton-finley.net/fedora_cor...es.html#nVidia
 
Old 02-28-2007, 10:21 AM   #5
phyrko
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I already have kmod-nvidia installed along with xorg-x11-drv-nvidia and I see the nvidia splashscreen on X initialisation. (All necessary changes made to xorg.conf for TV-Out.)

I don't think it is a driver problem.

Some things I have read that might help include low-latency scheduling, enabling raw devices, forcing use of /dev/shm instead of /tmp. These all seem quite extreme solutions though.

Anyone have any thoughts about that?

Last edited by phyrko; 02-28-2007 at 11:17 AM.
 
  


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