Re: [linux-audio-dev] disk latency under 2.4.19 ll+preempt

New Message Reply About this list Date view Thread view Subject view Author view Other groups

Subject: Re: [linux-audio-dev] disk latency under 2.4.19 ll+preempt
From: jfm3 (jfm3_AT_ouroboros-complex.org)
Date: Wed Nov 20 2002 - 20:20:49 EET

I have "Use PCI DMA by default when available" set to Y already.

In terms of the DMA mode, are you talking about a BIOS setting or
something I can do with the right software to manipulate the drivers?

Right now I run:

/sbin/hdparm -m 8 -d 1 -u 1 -c 1 /dev/hda

Thanks for the help!

> >Do you have support for your chipset unabled under "IDE, ATA and ATAPI
> >Block devices" in your kernel configuration, and "Use PCI DMA by default
> >when available"? I believe this is rather important.
> >
> On my asus A7V266-E board i had to set down dma mode from DMA100 to DMA33
> get LL working fine. (<3ms) 

-- 
(jfm3  2838 BCBA 93BA 3058 ED95  A42C 37DB 66D1 B43C 9FD0)

New Message Reply About this list Date view Thread view Subject view Author view Other groups

This archive was generated by hypermail 2b28 : Wed Nov 20 2002 - 20:37:05 EET