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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Is there a way to tell how accurate the timing is on a box
before running FreeSWITCH on it?<o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> freeswitch-users-bounces@lists.freeswitch.org
[mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>Anthony
Minessale<br>
<b>Sent:</b> Wednesday, March 10, 2010 10:26 AM<br>
<b>To:</b> freeswitch-users@lists.freeswitch.org<br>
<b>Subject:</b> Re: [Freeswitch-users] Kernel timer warning with CentOS 5.4<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>FS now tries to determine how
accurate the timing is by doing some tests with 1ms sleeps.<br>
Most 64 bit CentOS box I have seen can easily calibrate.<br>
If you are having that error alot but the calls still sound ok, it's safe to
ignore it.<br>
you can also start FS with -nocal to skip this test.<br>
<br>
Also make sure you do not have any other cpu-intensive application on your box
possibly competing for resources.<br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal>On Wed, Mar 10, 2010 at 3:42 AM, Tihomir Culjaga <<a
href="mailto:tculjaga@gmail.com">tculjaga@gmail.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal>i have the same issue but on centos 4.8 ... on 5.4 doesn't
complain...<br>
<br>
what is this related to ?<br>
<span style='color:#888888'><br>
T.</span><o:p></o:p></p>
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<p class=MsoNormal>On Mon, Mar 8, 2010 at 2:25 PM, Bruce Hopkins <<a
href="mailto:jbrucehopkins@gmail.com" target="_blank">jbrucehopkins@gmail.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>Hi Anthony,<br>
<br>
Many, many apologies to take so long to reply - I failed to notice your
response. Sorry !<br>
<br>
It seems to be variable. Most times (on CentOS 5.3) when I start FS it
tells me it is around 1995ms. Occasionally it is lower (sub 1000ms) and
then does not give a warning.<br>
<br>
Best wishes<br>
<span style='color:#888888'>Bruce</span><o:p></o:p></p>
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<p class=MsoNormal>On 1 March 2010 16:47, Anthony Minessale <<a
href="mailto:anthony.minessale@gmail.com" target="_blank">anthony.minessale@gmail.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>we are still wary about 5.3 due
to bugs reported in libc.<br>
What number does it say it detected for the gap?<br>
<br>
<o:p></o:p></p>
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<p class=MsoNormal>On Sun, Feb 28, 2010 at 12:03 PM, Bruce Hopkins <<a
href="mailto:jbrucehopkins@gmail.com" target="_blank">jbrucehopkins@gmail.com</a>>
wrote:<o:p></o:p></p>
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<div>
<p class=MsoNormal>OK - I've realised I do get the same warning with CentOS
5.3, it just goes past more quickly so I didn't see it. Maybe it is just
the hardware ....<o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
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<p class=MsoNormal>On 28 February 2010 15:37, Bruce Hopkins <<a
href="mailto:jbrucehopkins@gmail.com" target="_blank">jbrucehopkins@gmail.com</a>>
wrote:<o:p></o:p></p>
<p class=MsoNormal>Hi,<br>
<br>
I wonder if anyone would be able to advise please:<br>
<br>
When I build FreeSWITCH on yum updated CentOS 5.4, I get a warning when I start
FreeSWITCH that <br>
<br>
"Abnormally large timer gap detected"<br>
"Do you have your kernel timer set to greater than 1kHz? You may
experience audio problems".<br>
<br>
I get no such warning if I build on CentOS 5.3, and the test timings it
measures on starting FreeSWITCH do look lower. All I was doing to upgrade
to Centos5.4 was a yum update on the 5.3 build.<br>
<br>
I guess the warning comes from here: <a
href="http://fisheye.freeswitch.org/browse/%7Eraw,r=16409/FreeSWITCH/src/switch_time.c"
target="_blank">http://fisheye.freeswitch.org/browse/~raw,r=16409/FreeSWITCH/src/switch_time.c</a><br>
<br>
This is all on pretty low spec hardware - a couple of different Dell optiplex
p4's I use for testing.<br>
<br>
Does anyone happen to know if I should just stick to Cent)S 5.3, or use 5.4 and
not worry about the warnings, or if there is something I can do to fix the
problem it is warning about. Perhaps it is just that I shouldn't use such
crummy hardware?!<br>
<br>
Many thanks in advance<br>
<span style='color:#888888'>Bruce</span><o:p></o:p></p>
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<o:p></o:p></p>
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<div>
<p class=MsoNormal><br>
-- <br>
Anthony Minessale II<br>
<br>
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<br>
-- <br>
Anthony Minessale II<br>
<br>
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