Development issues regarding the cerowrt test router project
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* [Cerowrt-devel] collecting some data?
@ 2013-02-25 20:13 Dave Taht
  2013-02-25 20:22 ` Dave Taht
  2013-02-25 20:39 ` Maciej Soltysiak
  0 siblings, 2 replies; 5+ messages in thread
From: Dave Taht @ 2013-02-25 20:13 UTC (permalink / raw)
  To: cerowrt-devel


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I have been collecting statistics on the behavior of the 3.7.5-2 version of
cerowrt, and perhaps y'all out there can help. I've been doing four
repeatable tests.

I feed the attached file into the chrome web page benchmark and run it 4
times:

1) No other load on the system
2) while running a single up and single down netperf stream to icei.org (on
the east coast)
3) then while still loaded, after turning on simple_qos.sh, set for ~85% of
the rated up/down bandwidth...
4) then killing the load, and keeping simple_qos enabled.

I export each detailed (you have to select it) .csv output from that
benchmark to a file.

I do it against a bidirectional stream - one each of

netperf -l 6000 -4 -H icei.org -t TCP_MAERTS &
netperf -l 6000 -4 -H icei.org -t TCP_STREAM &

(if you have ipv6, more power to you, kill the -4. )

then starting the web tests 10-20 seconds later. It's interesting to watch
cero's bandwidth graphs while doing this.

There are netperf servers setup on the east (icei.org) and west coast (
snapon.lab.bufferbloat.net) and a few other places. It would be sane to
setup your own someplace you control (from netperf's svn compiled with
--enable-demo), as it helps to have a shorter RTT to truly load up the
link. You can also run the rrul test (preferably for 5 minutes or more
because this test idea KILLs web page load times) to get a heavier load and
more graphs.

If you are up to trying this test series, please let me know, send along
the details of your setup, and the 4 csv files, and perhaps your data will
show up in an upcoming paper.

The chrome web page benchmark can be had at:

https://chrome.google.com/webstore/detail/page-benchmarker/channimfdomahekjcahlbpccbgaopjll?hl=en

And requires you fire off chrome with --enable-benchmarking

You can use the version of netperf on cerowrt to generate the load if you
like, but rrul doesn't run on that. Latest version of rrul is at
https://github.com/tohojo/netperf-wrapper

-- 
Dave Täht

Fixing bufferbloat with cerowrt:
http://www.teklibre.com/cerowrt/subscribe.html

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http://www.google.com,
https://www.facebook.com,
http://www.youtube.com,
http://www.yahoo.com,
http://www.baidu.com,
http://www.wikipedia.org,
http://www.amazon.com,
https://twitter.com,
http://www.bing.com,
http://www.yandex.ru,
http://www.microsoft.com/en-US/default.aspx,
http://xfinity.comcast.net

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2013-02-25 20:44 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-02-25 20:13 [Cerowrt-devel] collecting some data? Dave Taht
2013-02-25 20:22 ` Dave Taht
2013-02-25 20:39 ` Maciej Soltysiak
2013-02-25 20:40   ` Maciej Soltysiak
2013-02-25 20:44   ` Dave Taht

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