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this was posted before:<br>
<pre wrap="">On 5/12/05, Colin Anderson <a class="moz-txt-link-rfc2396E"
href="mailto:ColinA@landmarkmasterbuilder.com"><ColinA@landmarkmasterbuilder.com></a> wrote:
</pre>
<blockquote type="cite">
<pre wrap=""><span class="moz-txt-citetags">> </span> > They instantly got us to look at the output of zttest and we found that
<span class="moz-txt-citetags">> </span>this was (in their words) 'extremely low', with 'best' and > 'worst'
<span class="moz-txt-citetags">> </span>readings of 99.975586% and 99.963379% respectively.
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>Might want to give PCI latency setting a try, it helped for me. My ZTTEST
<span class="moz-txt-citetags">> </span>would drop occasionally to 99.95% until I set:
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>setpci -v -s 01:01.0 latency_timer=ff <--Digium PRI card
<span class="moz-txt-citetags">> </span>setpci -v -s 01:04:0 latency_timer=ff <--Digium 401 4 X FXS
<span class="moz-txt-citetags">> </span>setpci -v -s XX:XX:X latency_timer=0 <--1 entry for every other PCI card in
<span class="moz-txt-citetags">> </span>system from LSPCI output, modify XX:XX accordingly
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>Before setpci I would get best in ZTTEST at 99.987793% and worst ~ 99.95%
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>After setpci best is 100% and worst is 99.987793% consitient.
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>I use SpanDSP to recieve faxes and before faxes were garbled and now they
<span class="moz-txt-citetags">> </span>are OK (BTW, now recieving ~150 faxes a day 99.95% OK, so SpanDSP <b
class="moz-txt-star"><span class="moz-txt-tag">*</span>does<span
class="moz-txt-tag">*</span></b>
<span class="moz-txt-citetags">> </span>work fine, you just have to set it up right. Ask me how.)
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>I put the setpci statements in /etc/rc.d/rc.local before my modprobes to the
<span class="moz-txt-citetags">> </span>Digium hardware and Asterisk startup.
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>I'm using a 4-way Netfinity FC2 * 1.0 stable
<span class="moz-txt-citetags">> </span>
<span class="moz-txt-citetags">> </span>I dunno, maybe the community is being too hard on Digium about the design of
<span class="moz-txt-citetags">> </span>the card. I can understand their perpective, it's brutal to make a card that
<span class="moz-txt-citetags">> </span>has to have such tight tolerances and make it work acceptably on the huge
<span class="moz-txt-citetags">> </span>variation in white box hardware (or black box, in your case). There's a page
<span class="moz-txt-citetags">> </span>on the Wiki about motherboards that work well with installation notes but
<span class="moz-txt-citetags">> </span>that's pointless since motherboards are such a moving target. Even the
<span class="moz-txt-citetags">> </span>motherboard vendor screwing around with BIOS updates can invalidate that
<span class="moz-txt-citetags">> </span>information. </pre>
</blockquote>
<br>
<br>
Waldo Rubinstein escribió:
<blockquote cite="midC639106E-F674-492D-B6E2-CA317C723017@trianet.net"
type="cite">I was browsing the applications developed in zaptel and
came across zttest.
<br>
<br>
After I run it, I get the following:
<br>
<br>
Opened pseudo zap interface, measuring accuracy...
<br>
99.975586% 99.987793% 99.987793% 99.987793% 99.987793% 100.000000%
99.987793%
<br>
99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%
99.987793% 99.975586%
<br>
99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%
99.987793% 99.987793%
<br>
99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%
99.987793% 99.987793%
<br>
99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%
99.987793% 99.987793%
<br>
99.987793% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%
99.987793% 99.987793%
<br>
100.000000% 99.987793% 99.987793% 99.987793% 99.987793% 99.987793%
99.987793% 99.987793%
<br>
99.987793% 99.987793%
<br>
--- Results after 57 passes ---
<br>
Best: 100.000000 -- Worst: 99.975586 -- Average: 99.987793
<br>
<br>
What does this mean? Should I have expected to get 100% across the
board?
<br>
<br>
This is from a TE410P running on Debian 2.6.11-1-686-smp on a dual
Xeon 2.4GHz server.
<br>
<br>
Thanks,
<br>
Waldo
<br>
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</blockquote>
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