[lug] Linux App Midnight Problem
nate at natetech.com
Thu Aug 26 18:54:41 MDT 2004
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 ?
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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