Re: a question on performance
On Thursday 18 July 2002 05:10 pm, martin f krafft wrote:
> also sprach Derek Gladding <derek_gladding@altavista.net>
[2002.07.19.0158 +0200]:
> > (1) VESA driver is painfully slow - it works, but does everything
> > in software, gobbling up huge chunks of CPU. It's probably worth
> > grabbing the 4.2 debs to get Radeon support (that's what I'm using
> > now, and works fine for me).
>
> where from?
>
http://people.debian.org/~branden/sid/
> > (2) Have you tried playing with the hdparm '-u' flag to turn off
> > interrupt masking during IDE accesses ?
>
> nope. will do... thanks!
Also, make sure you're using DMA rather than letting the CPU handle the
transfers. Play around with hdparm a bit to see what's
smoothest/fastest/most stable and then use the -k flag to make it
sticky, but make sure of stability first.
- Derek
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