1.6.15-32-bec4538~64bit (-32-bec4538 64bit), from the official debian packages in February. On Thu, Apr 20, 2017 at 9:54 AM, Brian West <brian@freeswitch.org> wrote:
The unknown here is what Revision of FreeSWITCH is this from?
On Tue, Apr 18, 2017 at 9:00 PM, Simon Ditner < spditner+freeswitch@gmail.com> wrote:
I'm having a bit of trouble interpreting the jitter_ related data that I am getting out of XML CDR's in an attempt to measure how well a system is performing.
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 "echo", with jitterbuffer_ms=60:200:20
At the 'echo' 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't been able to determine from the source code thus far what they are measuring, and what units they are working in.
Any pointers would be appreciated.
Cheers, Simon
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<call-stats> <audio> <inbound> <raw_bytes>817744</raw_bytes> <media_bytes>817744</media_bytes> <packet_count>4772</packet_count> <media_packet_count>4772</media_packet_count> <skip_packet_count>51</skip_packet_count> <jitter_packet_count>4774</jitter_packet_count> <dtmf_packet_count>0</dtmf_packet_count> <cng_packet_count>0</cng_packet_count> <flush_packet_count>0</flush_packet_count> <largest_jb_size>0</largest_jb_size> <jitter_min_variance>0.10</jitter_min_variance> <jitter_max_variance>7076.55</jitter_max_variance> <jitter_loss_rate>116.67</jitter_loss_rate> <jitter_burst_rate>115.67</jitter_burst_rate> <mean_interval>20.06</mean_interval> <flaw_total>0</flaw_total> <quality_percentage>100.00</quality_percentage> <mos>4.50</mos> </inbound> <outbound> <raw_bytes>812700</raw_bytes> <media_bytes>812700</media_bytes> <packet_count>4725</packet_count> <media_packet_count>4725</media_packet_count> <skip_packet_count>0</skip_packet_count> <dtmf_packet_count>0</dtmf_packet_count> <cng_packet_count>0</cng_packet_count> <rtcp_packet_count>0</rtcp_packet_count> <rtcp_octet_count>0</rtcp_octet_count> </outbound> <error-log> <error-period> <start>1492563921959035</start> <stop>1492563927519075</stop> <flaws>511194</flaws> <consecutive-flaws>0</consecutive-flaws> <duration-msec>5560</duration-msec> </error-period> </error-log> </audio> </call-stats>
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