[Freeswitch-users] Choppy VM when using loopback (on Debian lenny)

[Frank Park]

Yeah. I, too, don't see the correlation between the NTP and hw timer..
I am not familiar with the timer_test command and what it's measuring, but
of the 50 tests it ran, min is 19089 and max is 20713.

Frank


On Fri, Jan 28, 2011 at 2:33 PM, David Ponzone <david.ponzone at ipeva.fr>wrote:

> Frank,
>
> I fail to see the relationship between the hw timer and NTP.
> Can you please elaborate ?
>
>  David Ponzone  Direction Technique
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> Le 28/01/2011 à 19:49, Frank Carmickle a écrit :
>
> Hi
>
> On Jan 28, 2011, at 7:39 AM, Øyvind Albrigtsen wrote:
>
> Hi,
>
>
> I'm using latest git-version of Freeswitch, and when I go to voicemail
>
> when calling a number the sound playback is choppy and it skips some of
>
> the digits in the number I called.
>
>
> What kind of results do you get from timer_test at the fs_cli?  Are you
> running on hardware or are you virtualized?  What is your clock source set
> to and what are your available clock source options?  See
> /sys/devices/system/clocksource/clocksource0/available_clocksource and
> /sys/devices/system/clocksource/clocksource0/current_clocksource.  I am
> running virtualized with the 2.6.26-2-xen-amd64 and I can get timer_test to
> hang at 19998/19999 which works very well for me.  When I was having problem
> it was reporting numbers all over the map from 17400 to 22600 with lots of
> randomness in between.  I have my clocksource set to jiffies and xen
> independent wallclock set to 1.  Of course at that point you need to have
> ntp running against a bunch of servers to drive your clock nice and steady.
>  I know my set up is probably a lot different than yours but I thought I'd
> toss it out there to show that some of the harshest conditions can be dealt
> with and don't give up trying.  If you are running on hardware with a cpu
> that doesn't have constant_tsc then you might have some problems.  Just play
> with the different timer options until you find the one that works.
>
> HTH
> --FC
>
>
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