[linux-audio-user] Linux DAW otimization (and Kanotix)

Lee Revell rlrevell at joe-job.com
Sat Feb 18 12:54:59 EST 2006


On Sat, 2006-02-18 at 00:47 -0800, Kevin Cosgrove wrote:
> On 18 February 2006 at 0:15, Lee Revell <rlrevell at joe-job.com> wrote:
> 
> > This helps a lot:
> > echo 64 > /sys/block/hdc/queue/max_sectors_kb
> > (replace hdc with your drive, repeat for all of them)
> 
> Interesting.  What does that do?

It limits the amount of disk IO that can be "in flight" at once, which
limits the amount of work the IDE driver will do in a single interrupt,
which improves the worst case disk IO induced latency.

It's not going to help with an -rt kernel, only mainline.

I'd be interested to see what results people get...

Lee




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