[lug] Linux App Midnight Problem

[Gregory Seker]

AM Digital HD Radio ... trust me, its noticable over time.

Design aside, I still like to have better control over something that
may be influencing the app at midnight.

----- Original Message ----- 
From: "Nate Duehr" <nate at natetech.com>
To: "Boulder (Colorado) Linux Users Group -- General Mailing List"
<lug at lug.boulder.co.us>
Sent: Thursday, August 26, 2004 8:54 PM
Subject: Re: [lug] Linux App Midnight Problem


> Gregory Seker wrote:
>
> > Running Kernel 2.4.20 on an Intel STL2 motherboard.
> >
> > Application services a home brewed audio card every 23 mSec.
> >
> > Seems every so often (twice a month or so) the service routine
> > is held off about 10-50 mSec just after midnight (like mSecs after
> > midnight) causing problems.
> >   - crond is disabled
> >   - clock/date syncing is disabled (ntp, gps, etc).
> >
> > Trying to rule out kernel and OS processes.
> >
> > Any ideas or a good forum to look into ?
> >
> > -zeke
>
> If your application has a requirement to absolutely run each and every
> 23ms, it sounds like you need an RTOS, and not Linux?
>
> What's the problem with just having the application "miss" once in a
> while -- audio missing a single 23ms sample would hardly be noticible to
> the human ear?
>
> This appears to be an engineering design problem, not a Linux problem???
>
> --
> Nate Duehr, nate at natetech.com
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