Ubuntu has a real time kernel in repository "apt-get install linux-rt" . So you dont need to recompile . I think debian should also have one in repository , or u can manually compile a real time enabled kernel . Here's what is shows with real time patched kernel .<br>
<br> dmesg|grep ztdummy<br>[ 53.293071] ztdummy: Trying to load High Resolution Timer<br>[ 53.293076] ztdummy: Initialized High Resolution Timer<br>[ 53.293078] ztdummy: Starting High Resolution Timer<br>[ 53.293080] ztdummy: High Resolution Timer started, good to go<br>
<br> zttest<br>Opened pseudo zap interface, measuring accuracy...<br>100.000000% 99.987793% 99.792480% 99.780273% 99.987793% 99.975586% 99.987793%<br>99.987793% 100.000000% 100.000000% 100.000000% 99.987793% 99.987793% 99.987793% 100.000000%<br>
100.000000% 99.987793% 100.000000%<br>--- Results after 18 passes ---<br>Best: 100.000000 -- Worst: 99.780273 -- Average: 99.969482<br><br><br><br><div class="gmail_quote">On Feb 2, 2008 10:27 PM, Administrator TOOTAI <<a href="mailto:admin@tootai.net">admin@tootai.net</a>> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="Ih2E3d">Matthew J. Roth a écrit :<br></div><div class="Ih2E3d">> Administrator TOOTAI wrote:<br>
><br>>> This is not true if you're using B410P cards. We always face timing<br>>> problem as we can't -Asterisk stability issues- add X100P or TDM400P<br>>> with those cards<br>>><br>> Daniel,<br>
><br>> I thought that using an empty TDM400P as a timing source may no longer<br>> be the best solution due to the emergence of new stable timing sources<br>> (such as HPET), but this is an interesting issue. Are you stating that<br>
> you can't put an X100P or a TDM400P with no lines attached alongside a<br>> B410P because it impacts the stability of Asterisk?<br></div>Yes<br><div class="Ih2E3d">> Do you have any<br>> idea why?<br></div>
No<br><div class="Ih2E3d">> Can't the B410P be used as a timing source?<br></div>No<br><div class="Ih2E3d">> What have you<br>> done to provide stable timing?<br>><br></div>ztdummy, not always stable :-(<br>
<div class="Ih2E3d">> I know that's a lot of questions, but I'm genuinely curious.<br>;-)<br>> It seems<br>> very strange that a TDM400P in timingonly mode and no lines attached<br>> would have any impact on Asterisk's stability.<br>
><br></div>I have to add that this is mainly true with 2 B410P in the server or<br>with B410P in amd64 machines. Seems also that Debian Etch with a 2.6.18<br>kernel is not the best :-(<br><font color="#888888">--<br>Daniel<br>
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