<div dir="ltr">I would make a small packet run too. For iperf2 use -l 40 and -b 20000pps and vary the pps number. I would hope that OFDMA would increase this. <br><br>Also, don't forget about jitter - the derivative of latency. Some protocols care more about jitter than they do latency. <br><br>I'd look into measuring the actual latency and jitter of the traffic vs using a ping as a proxy. This will be supported in iperf 2.0.14 using the write (server) side clock and --write-ack. Better though is to synchronize the clocks and use one way trip times. While I like to synchronize the realtime clocks to the GPS atomic clock as the reference, using PTP and synchronizing to a common reference of any PC oscillator may be good enough. PTP stats will give you errors and corrections and per the corrections one can get an idea of the error.<br><br>Thanks for posting. I really don't think OFDMA is going to affect such large latencies in a noticeable manner. I think it will be the ultra low latencies or near zero queuing that will matter. For data center switches this is driven mostly by high frequency traders. For WiFi it's going to be newer games with VR/AR. Those latencies are going to need to be very low compared to today's use cases.<br><br>my $0.02,<br><br>Bob</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, May 27, 2020 at 7:37 AM Tim Higgins <<a href="mailto:tim@smallnetbuilder.com">tim@smallnetbuilder.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<font size="-1" face="Times New Roman, Times, serif">Tests have been
redone and article is back up.<br>
===========================<br>
Hi All,<br>
<br>
This article uses the benchmark test described in Part 1 to test 6
Wi-Fi consumer routers. Results are not impressive.<br>
<a href="https://www.smallnetbuilder.com/wireless/wireless-features/33223-does-ofdma-really-work-part-2" target="_blank">https://www.smallnetbuilder.com/wireless/wireless-features/33223-does-ofdma-really-work-part-2</a><br>
</font>
<div><br>
<div><font size="-1" face="Times New Roman, Times, serif">===========<br>
Tim <br>
</font></div>
</div>
</div>
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