The rate control behavior strange during test

Hi, I've give the rate control implemented in webrtc a test, seems its behavior is abnormal. I'm using the peerconnection_client to do the test, and use netlimit to set one-way bandwidth to 50KB/s, the rate of other direction fluctuate dramatically, from 10KB/s to 200KB/s, I tried to open the relating logs, but after that, the connection won't setup, there seems some bug in the connection setup, I've updated the code, and it failed to compile. Seems the jsep is not ready now. And I can't test on it now. So, it's there any problem in my test? Is there any existing test report on this? Thanks, Jeromy

I'm wondering why the algorithm of get queuing delay in utp ledbat( http://tools.ietf.org/html/draft-ietf-ledbat-congestion-00 ) is not taken here, seems that's much simpler and effective, and it can remove the clock skew. 2012/3/31 Fu Jiantao <fuji246@gmail.com>
Hi,
I've give the rate control implemented in webrtc a test, seems its behavior is abnormal.
I'm using the peerconnection_client to do the test, and use netlimit to set one-way bandwidth to 50KB/s, the rate of other direction fluctuate dramatically, from 10KB/s to 200KB/s, I tried to open the relating logs, but after that, the connection won't setup, there seems some bug in the connection setup, I've updated the code, and it failed to compile. Seems the jsep is not ready now. And I can't test on it now.
So, it's there any problem in my test? Is there any existing test report on this?
Thanks, Jeromy

Hi, I think it's probably because it was assumed that one cannot send so much feedback (because RTP/RTCP would be used). But I think that this may be a mistake - see my next email. Cheers, Michael On Apr 1, 2012, at 6:01 AM, Fu Jiantao wrote:
I'm wondering why the algorithm of get queuing delay in utp ledbat( http://tools.ietf.org/html/draft-ietf-ledbat-congestion-00 ) is not taken here, seems that's much simpler and effective, and it can remove the clock skew.
2012/3/31 Fu Jiantao <fuji246@gmail.com> Hi,
I've give the rate control implemented in webrtc a test, seems its behavior is abnormal.
I'm using the peerconnection_client to do the test, and use netlimit to set one-way bandwidth to 50KB/s, the rate of other direction fluctuate dramatically, from 10KB/s to 200KB/s, I tried to open the relating logs, but after that, the connection won't setup, there seems some bug in the connection setup, I've updated the code, and it failed to compile. Seems the jsep is not ready now. And I can't test on it now.
So, it's there any problem in my test? Is there any existing test report on this?
Thanks, Jeromy
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On 4/1/2012 12:01 AM, Fu Jiantao wrote:
I'm wondering why the algorithm of get queuing delay in utp ledbat( http://tools.ietf.org/html/draft-ietf-ledbat-congestion-00 ) is not taken here, seems that's much simpler and effective, and it can remove the clock skew.
It's worth considering; delay-sensitive CC needs an estimate of queuing delay (combined with all other delay sources). It would be interesting to compare the two in this framework in simulations. I personally seriously doubt it would beat harald's draft. -- Randell Jesup randell-ietf@jesup.org
participants (3)
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Fu Jiantao
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Michael Welzl
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Randell Jesup