[asterisk-users] Terrible dahdi_test results

Russ Meyerriecks rmeyerriecks at digium.com
Tue May 13 15:26:40 CDT 2014

On Tue, May 13, 2014 at 7:28 AM, Mike Leddy <mike at loop.com.br> wrote:
> But on examination the /etc/init.d/dahdi start was only loading
> the dahdi module.

With this in mind I might start looking around the system for things which
might cause jitter in the servicing of system timer interrupts:

Are you running under a virtualized environment?
Are you running a tickless kernel? (maybe try adding nohz=off to your
kernel boot parameters)
Is there some sort of processor power saving or frequency scaling going on
that interrupts the system timer?

Russ Meyerriecks
Digium, Inc. | Linux Kernel Developer
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
direct: +1 256-428-6025
Check us out at: www.digium.com & www.asterisk.org
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