<div dir="ltr">The unknown here is what Revision of FreeSWITCH is this from?</div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 18, 2017 at 9:00 PM, Simon Ditner <span dir="ltr">&lt;<a href="mailto:spditner+freeswitch@gmail.com" target="_blank">spditner+freeswitch@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div style="font-size:12.8px"><span style="font-size:12.8px">I&#39;m having a bit of trouble interpreting the jitter_ related data that I am getting out of XML CDR&#39;s in an attempt to measure how well a system is performing.</span></div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">For example, I place a G.711 call over a private LAN between two idle systems using PCMU, the originator being static in a continuous loop, and the destination being &quot;echo&quot;, with jitterbuffer_ms=60:200:20</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">At the &#39;echo&#39; end, I examine the call-stats section of the XML CDR (below), and I am not sure what to make of the jitter_ values -- for example max_variance of 7076.55, and a loss_rate of 116.67 -- as I haven&#39;t been able to determine from the source code thus far what they are measuring, and what units they are working in.</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Any pointers would be appreciated.</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">Cheers,</div><div style="font-size:12.8px">Simon</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">----</div><div style="font-size:12.8px"><br></div><div style="font-size:12.8px">  &lt;call-stats&gt;</div><div style="font-size:12.8px">    &lt;audio&gt;</div><div style="font-size:12.8px">      &lt;inbound&gt;</div><div style="font-size:12.8px">        &lt;raw_bytes&gt;817744&lt;/raw_bytes&gt;</div><div style="font-size:12.8px">        &lt;media_bytes&gt;817744&lt;/media_byt<wbr>es&gt;</div><div style="font-size:12.8px">        &lt;packet_count&gt;4772&lt;/packet_cou<wbr>nt&gt;</div><div style="font-size:12.8px">        &lt;media_packet_count&gt;4772&lt;/medi<wbr>a_packet_count&gt;</div><div style="font-size:12.8px">        &lt;skip_packet_count&gt;51&lt;/skip_pa<wbr>cket_count&gt;</div><div style="font-size:12.8px">        &lt;jitter_packet_count&gt;4774&lt;/jit<wbr>ter_packet_count&gt;</div><div style="font-size:12.8px">        &lt;dtmf_packet_count&gt;0&lt;/dtmf_pac<wbr>ket_count&gt;</div><div style="font-size:12.8px">        &lt;cng_packet_count&gt;0&lt;/cng_packe<wbr>t_count&gt;</div><div style="font-size:12.8px">        &lt;flush_packet_count&gt;0&lt;/flush_p<wbr>acket_count&gt;</div><div style="font-size:12.8px">        &lt;largest_jb_size&gt;0&lt;/largest_jb<wbr>_size&gt;</div><div style="font-size:12.8px">        &lt;jitter_min_variance&gt;0.10&lt;/jit<wbr>ter_min_variance&gt;</div><div style="font-size:12.8px">        &lt;jitter_max_variance&gt;7076.55&lt;/<wbr>jitter_max_variance&gt;</div><div style="font-size:12.8px">        &lt;jitter_loss_rate&gt;116.67&lt;/jitt<wbr>er_loss_rate&gt;</div><div style="font-size:12.8px">        &lt;jitter_burst_rate&gt;115.67&lt;/jit<wbr>ter_burst_rate&gt;</div><div style="font-size:12.8px">        &lt;mean_interval&gt;20.06&lt;/mean_int<wbr>erval&gt;</div><div style="font-size:12.8px">        &lt;flaw_total&gt;0&lt;/flaw_total&gt;</div><div style="font-size:12.8px">        &lt;quality_percentage&gt;100.00&lt;/qu<wbr>ality_percentage&gt;</div><div style="font-size:12.8px">        &lt;mos&gt;4.50&lt;/mos&gt;</div><div style="font-size:12.8px">      &lt;/inbound&gt;</div><div style="font-size:12.8px">      &lt;outbound&gt;</div><div style="font-size:12.8px">        &lt;raw_bytes&gt;812700&lt;/raw_bytes&gt;</div><div style="font-size:12.8px">        &lt;media_bytes&gt;812700&lt;/media_byt<wbr>es&gt;</div><div style="font-size:12.8px">        &lt;packet_count&gt;4725&lt;/packet_cou<wbr>nt&gt;</div><div style="font-size:12.8px">        &lt;media_packet_count&gt;4725&lt;/medi<wbr>a_packet_count&gt;</div><div style="font-size:12.8px">        &lt;skip_packet_count&gt;0&lt;/skip_pac<wbr>ket_count&gt;</div><div style="font-size:12.8px">        &lt;dtmf_packet_count&gt;0&lt;/dtmf_pac<wbr>ket_count&gt;</div><div style="font-size:12.8px">        &lt;cng_packet_count&gt;0&lt;/cng_packe<wbr>t_count&gt;</div><div style="font-size:12.8px">        &lt;rtcp_packet_count&gt;0&lt;/rtcp_pac<wbr>ket_count&gt;</div><div style="font-size:12.8px">        &lt;rtcp_octet_count&gt;0&lt;/rtcp_octe<wbr>t_count&gt;</div><div style="font-size:12.8px">      &lt;/outbound&gt;</div><div style="font-size:12.8px">      &lt;error-log&gt;</div><div style="font-size:12.8px">        &lt;error-period&gt;</div><div style="font-size:12.8px">          &lt;start&gt;1492563921959035&lt;/start<wbr>&gt;</div><div style="font-size:12.8px">          &lt;stop&gt;1492563927519075&lt;/stop&gt;</div><div style="font-size:12.8px">          &lt;flaws&gt;511194&lt;/flaws&gt;</div><div style="font-size:12.8px">          &lt;consecutive-flaws&gt;0&lt;/consecut<wbr>ive-flaws&gt;</div><div style="font-size:12.8px">          &lt;duration-msec&gt;5560&lt;/duration-<wbr>msec&gt;</div><div style="font-size:12.8px">        &lt;/error-period&gt;</div><div style="font-size:12.8px">      &lt;/error-log&gt;</div><div style="font-size:12.8px">    &lt;/audio&gt;</div><div style="font-size:12.8px">  &lt;/call-stats&gt;</div></div>
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<a href="http://www.freeswitch.org" rel="noreferrer" target="_blank">http://www.freeswitch.org</a><br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">







<p><font face="courier new, monospace"><b><i><font size="4">Brian West</font></i></b><br><span style="font-size:x-small"><a href="mailto:brian@freeswitch.org" target="_blank">brian@freeswitch.org</a></span></font></p><p><b style="font-family:monospace,monospace;font-size:small"><i>Twitter: @FreeSWITCH , @briankwest</i></b></p><p><font size="2" face="monospace, monospace"><a href="http://www.freeswitchbook.com" target="_blank">http://www.freeswitchbook.com</a> <br><a href="http://www.freeswitchcookbook.com" target="_blank">http://www.freeswitchcookbook.com</a></font></p><p><font size="2" face="monospace, monospace"><a href="https://freeswitch.com/appointment">Book a phone call (CST)</a><br><br>Allison prompts for FreeSWITCH:</font></p><table cellspacing="0" cellpadding="0" style="font-size:12.8px"><tbody><tr><td valign="baseline"><p><span><a href="https://www.gofundme.com/allison-prompts-for-freeswitch" target="_blank"><b>https://www.gofundme.com/allison-prompts-for-freeswitch</b></a></span></p></td></tr></tbody></table><p><span style="font-family:monospace,monospace;font-size:12.8px">Got Bugs? Report them </span><a href="https://freeswitch.org/jira" style="font-family:monospace,monospace;font-size:12.8px" target="_blank">here</a><span style="font-family:monospace,monospace;font-size:12.8px">! | Reddit: </span><a href="https://www.reddit.com/r/freeswitch" style="font-family:monospace,monospace;font-size:12.8px" target="_blank">/r/freeswitch</a><br></p>
<p><font size="2" face="monospace, monospace"><b>T:</b>+19184209001 | <b>F:</b>+19184209002 | <b>M:</b>+1918424WEST (9378)<br><b>Skype:</b>briankwest<br></font></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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