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

[Anthony Minessale]

Everyone should try latest GIT before pondering any further because I
added a patch like 2 days ago to adress this issue.


On Sat, Jan 29, 2011 at 2:12 PM, Frank Park <frank at telonium.com> wrote:
> 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
>> email: david.ponzone at ipeva.fr
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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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>
>
>
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>
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-- 
Anthony Minessale II

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