<div dir="ltr">Thanks Ilya!<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 23, 2017 at 6:56 AM, Ilya Shakhat <span dir="ltr"><<a href="mailto:ishakhat@mirantis.com" target="_blank">ishakhat@mirantis.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Sai,<div><br></div><div>In UDP testing PPS represents packets sent by iperf client to server. Loss is the percentage of packets that were not received by server (more specifically the server tracks packets and sums gaps between of them, <a href="https://github.com/esnet/iperf/blob/3.0.7/src/iperf_udp.c#L64" target="_blank">https://github.com/<wbr>esnet/iperf/blob/3.0.7/src/<wbr>iperf_udp.c#L64</a>). </div><div><br></div><div>While reported PPS depends on bandwidth and concurrency it makes sense to increase them until loss starts going up, meaning that the communication channel is near the limit. </div><div><br></div><div>Thanks,</div><div>Ilya</div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">2017-01-21 1:19 GMT+04:00 Sai Sindhur Malleni <span dir="ltr"><<a href="mailto:smalleni@redhat.com" target="_blank">smalleni@redhat.com</a>></span>:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div class="h5"><div dir="ltr"><div>Hey,<br><br></div>When using the "iperf3" class in shaker for looking at UDP small packet performance, we see that as we scale up the concurrency the average PPS goes up and also the loss % increases. Is the loss % a percentage of the PPS or does the PPS only represent successful transmissions? Thanks!<span class="m_-5319068203578480909HOEnZb"><font color="#888888"><br clear="all"><div><div><br>-- <br><div class="m_-5319068203578480909m_-9116821738299572330gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Sai Sindhur Malleni<br>Software Engineer<br>Red Hat Inc.<br>100 East Davie Street<br>Raleigh, NC, USA<br>Work: <a href="tel:(919)%20754-4557" value="+19197544557" target="_blank">(919) 754-4557</a> | Cell: <a href="tel:(919)%20985-1055" value="+19199851055" target="_blank">(919) 985-1055</a></div></div>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Sai Sindhur Malleni<br>Software Engineer<br>Red Hat Inc.<br>100 East Davie Street<br>Raleigh, NC, USA<br>Work: (919) 754-4557 | Cell: (919) 985-1055</div></div>
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