Subject: Re: [linux-audio-dev] about hdparm (and csound)
From: Josh Green (jgreen_AT_users.sourceforge.net)
Date: Fri Oct 05 2001 - 04:16:34 EEST
On Wed, 2001-10-03 at 13:14, Peter Surda wrote:
> On Wed, Oct 03, 2001 at 01:18:05PM -0500, Christopher Deckard wrote:
> > i found on this page:
> > http://www.uow.edu.au/~andrewm/linux/schedlat.html#ddt
> > where it says, "Don't run hdparm. It chews 50 milliseconds".
> > Could someone talk about this?
> I think you are misinterpreting this. It means that if you type
> hdparm -blahblahblah
> it has negative impact on the latency, hence you should not run it often.
> Having it in initscripts is usually enough.
>
I really doubt that. I think that list of things not to do is while you
are running your RT task. I don't see why hdparm would make your machine
worse and worse with latency each time you run it. It probably just
kills 50ms when ran.
>
> Bye,
>
> Peter Surda (Shurdeek) <shurdeek_AT_panorama.sth.ac.at>, ICQ 10236103, +436505122023
>
--
Josh Green
Smurf Sound Font Editor (http://smurf.sourceforge.net)
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