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Hi dev team,
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<div class="">First of all, thanks for trying <i class="">ndncon </i>today.</div>
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<div class="">I’d like to give a brief summary on today’s test, present results I have gathered and my thoughts/ideas for the next week.</div>
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<div class="">comments:</div>
<div class="">— Susmit didn’t present through <i class="">ndncon </i>today as was planned; the reason for that - CSU hub he supposed to be using stopped creating backroutes and we had very little time to fix it before seminar; he resorted to WebEX eventually</div>
<div class="">— even though Susmit was using WebEX, I still set up a conference bridge which published WebEX video using
<i class="">ndncon </i>so that <i class="">ndncon </i>users could fetch it</div>
<div class="">— I counted about 5 active users today (maybe +1 is Josh was fetching) fetching audio+video from confbridge.</div>
<div class="">— not all of them were publishing their streams though; in fact just me and occasionally Alex, so these streams were also fetched by confbridge user (thus contributed to overall traffic) and audio was passed on to WebEX (when I talked today, it
was through ndncon)</div>
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<div class="">summary:</div>
<div class="">— I was connected to REMAP hub and in the beginning, audio was quite choppy. video was ok, but it’s mainly due to its’ static nature (slides) - i didn’t miss any slides nevertheless. </div>
<div class="">— few users on UCLA hub reported choppy audio as well (Haitao and Alex)</div>
<div class="">— JeffT (WU) was experiencing choppy audio often; @JeffT, please share your experience if you’d like</div>
<div class="">— once Alex dropped (around 10-15min from the beginning of the seminar) , Haitao reported much better audio for him; I noticed that audio improved for me as well</div>
<div class="">— till the rest of the seminar, I experienced few short audio interruptions (once in 1-2min for 0.5-1sec long); it didn’t prevent me from understanding the content</div>
<div class="">— here is the gathered CPU and memory usage for the users participating in
<i class="">ndncon </i>test - <a href="http://ec2-52-91-190-26.compute-1.amazonaws.com:3000/dashboard/db/seminar-3-2-2016-overview" class="">http://ec2-52-91-190-26.compute-1.amazonaws.com:3000/dashboard/db/seminar-3-2-2016-overview</a> (use login: guest, pw:
ndnguest if needed); feel free to explore.</div>
<div class=""><i class=""><span class="Apple-tab-span" style="white-space:pre"></span>—
</i>one can see that Alex was experiencing raging NFD CPU usage during his first 10-15min until he restarted NFD;
<i class="">ndncon</i> CPU usage wasn’t that high though;</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>— NFD resident memory tends to be around 700-900Mb for all users</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>— one can notice
<i class="">ndncon </i>memory grows slowly over time (~20Mb per hour); we’ll look at that (though priority isn’t high for now)</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>— average
<i class="">ndncon</i> CPU usage for fetching 1 audio and 1 video stream is around 40% (but depends on the machine of course)</div>
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</i></div>
<div class=""><b class=""> next seminar:</b></div>
<div class="">— I’ll continue improving monitoring tool as my time allows (see real-time statistics <a href="http://ec2-52-91-190-26.compute-1.amazonaws.com:3000/dashboard/db/resources-monitor-last-30min" class="">here</a>, login:guest pw:ndnguest) and will
think of adding some internal core metrics for NDN-RTC (like number of streams fetched, chasing times, number of rebufferings, etc.)</div>
<div class="">— we should clarify for ourselves few things (please add any):</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>— why NFD CPU usage was raging or spiked sometimes (especially for Alex’s machine)?</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>— JeffT may have experienced problems due to changes in traffic routes (@JeffT, please confirm), should we test/confirm that?</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>— is there a correlation b/w degraded ndncon experience and metrics gathered by John DeHart?</div>
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<div class="">These updates are submitted to the <a href="http://redmine.named-data.net/issues/3485#note-8" class="">ticket</a>.</div>
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<div class="">Thanks,</div>
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</div>
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</div>
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-- <br class="">
Peter Gusev</div>
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<a href="mailto:peter@remap.ucla.edu" class="">peter@remap.ucla.edu</a><br class="">
+1 213 5872748<br class="">
peetonn_ (skype)</div>
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Software Engineer/Programmer Analyst @ REMAP UCLA<br class="">
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Video streaming/ICN networks/Creative Development</div>
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<div class="">On Mar 1, 2016, at 2:18 PM, Peter Gusev <<a href="mailto:peter@remap.ucla.edu" class="">peter@remap.ucla.edu</a>> wrote:</div>
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Hi dev team,
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<div class="">There are two test <i class="">ndncon</i> producers that should be available 24/7: </div>
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</b></div>
<div class=""><b class="">/ndn/edu/ucla/remap/freeculture</b> </div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1 audio stream</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1 stream 1000-bytes segments:</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 700 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1000 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 3000 kbps</div>
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<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>- 1 stream 8000-bytes segments:</div>
<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>- 700 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>- 1000 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>- 3000 kbps</div>
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<div class="">and </div>
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</b></div>
<div class=""><b class="">/ndn/edu/ucla/remap/test</b></div>
<div class=""><span class="Apple-tab-span" style="white-space: pre;"></span>- 1 audio stream (pandora radio)</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1 stream webcam</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 200 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1000 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 3000 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1 stream desktop</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 500 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 700 kbps</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span>- 1100 kbps</div>
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<div class="">If you can’t see them in <i class="">ndncon</i>’s “Active users” list, let me know, I’ll check the issue.</div>
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Thanks, </div>
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-- <br class="">
Peter Gusev</div>
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<br class="">
<a href="mailto:peter@remap.ucla.edu" class="">peter@remap.ucla.edu</a><br class="">
+1 213 5872748<br class="">
peetonn_ (skype)</div>
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Software Engineer/Programmer Analyst @ REMAP UCLA<br class="">
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Video streaming/ICN networks/Creative Development</div>
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