[asterisk-users] asterisk 1.8 on Solaris/sparc

[Hans Witvliet]

On Wed, 2012-07-18 at 02:27 -0400, Jeremy Kister wrote:
> I've got the latest asterisk 1.8 running on a Netra X1 with Solaris 10 u10.
> 
> The system itself is happy and phone calls (between two parties) seem fine.
> 
> Unfortunately, when a caller listens to a Playback recording, there 
> seems to be moments of stutter - perhaps 1 second of stutter for every 
> 10 seconds of Playback.  The stutter is not consistent at the same point 
> of the playback file.
> 
> To eliminate encoding as an issue, I have only codec_ulaw/format_pcm 
> loaded and the recording is ulaw.  I've niced down the asterisk process 
> to -19 even though I don't see asterisk taking more than 3% cpu.
> 
> 
> Is this behavior indicative of a timing problem?  loading 
> res_timing_pthread.so makes things horribly worse.  i don't believe any 
> other software timer is available for Solaris/sparc, right ?
> 
> other thoughts ?

Perhaps system too busy, disk not fast enough?
before doing a play-back, run "iostat 1" in another window

Incase iowait is too high, try moving the files with the playback
sound/speech upon tmpfs (thus eliminating the hard disk)

hw