[Nfd-dev] ndncon test producers

[Gusev, Peter]

Hi dev team,

First of all, thanks for trying ndncon today.

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.

comments:
— Susmit didn’t present through ndncon 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
— even though Susmit was using WebEX, I still set up a conference bridge which published WebEX video using ndncon so that ndncon users could fetch it
— I counted about 5 active users today (maybe +1 is Josh was fetching) fetching audio+video from confbridge.
— 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)

summary:
— 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.
— few users on UCLA hub reported choppy audio as well (Haitao and Alex)
— JeffT (WU) was experiencing choppy audio often; @JeffT, please share your experience if you’d like
— 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
— 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
— here is the gathered CPU and memory usage for the users participating in ndncon test - http://ec2-52-91-190-26.compute-1.amazonaws.com:3000/dashboard/db/seminar-3-2-2016-overview (use login: guest, pw: ndnguest if needed); feel free to explore.
— one can see that Alex was experiencing raging NFD CPU usage during his first 10-15min until he restarted NFD; ndncon CPU usage wasn’t that high though;
— NFD resident memory tends to be around 700-900Mb for all users
— one can notice ndncon memory grows slowly over time (~20Mb per hour); we’ll look at that (though priority isn’t high for now)
— average ndncon CPU usage for fetching 1 audio and 1 video stream is around 40% (but depends on the machine of course)

 next seminar:
— I’ll continue improving monitoring tool as my time allows (see real-time statistics here<http://ec2-52-91-190-26.compute-1.amazonaws.com:3000/dashboard/db/resources-monitor-last-30min>, 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.)
— we should clarify for ourselves few things (please add any):
— why NFD CPU usage was raging or spiked sometimes (especially for Alex’s machine)?
— JeffT may have experienced problems due to changes in traffic routes (@JeffT, please confirm), should we test/confirm that?
— is there a correlation b/w degraded ndncon experience and metrics gathered by John DeHart?

These updates are submitted to the ticket<http://redmine.named-data.net/issues/3485#note-8>.

Thanks,


[cid:9453FAEE-071D-4288-A492-3D34CD3754FF][cid:78AB15BB-C85D-4970-B4BC-5CE12EAE6AD9]


--
Peter Gusev

peter at remap.ucla.edu<mailto:peter at remap.ucla.edu>
+1 213 5872748
peetonn_ (skype)

Software Engineer/Programmer Analyst @ REMAP UCLA

Video streaming/ICN networks/Creative Development

On Mar 1, 2016, at 2:18 PM, Peter Gusev <peter at remap.ucla.edu<mailto:peter at remap.ucla.edu>> wrote:

Hi dev team,

There are two test ndncon producers that should be available 24/7:

/ndn/edu/ucla/remap/freeculture
- 1 audio stream
- 1 stream 1000-bytes segments:
- 700 kbps
- 1000 kbps
- 3000 kbps
- 1 stream 8000-bytes segments:
- 700 kbps
- 1000 kbps
- 3000 kbps
and

/ndn/edu/ucla/remap/test
- 1 audio stream (pandora radio)
- 1 stream webcam
- 200 kbps
- 1000 kbps
- 3000 kbps
- 1 stream desktop
- 500 kbps
- 700 kbps
- 1100 kbps

If you can’t see them in ndncon’s “Active users” list, let me know, I’ll check the issue.

Thanks,

--
Peter Gusev

peter at remap.ucla.edu<mailto:peter at remap.ucla.edu>
+1 213 5872748
peetonn_ (skype)

Software Engineer/Programmer Analyst @ REMAP UCLA

Video streaming/ICN networks/Creative Development


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