On 05/16/2012 09:34 AM, Sebastian Moeller wrote:
Hi Dave,
so I upgraded my router to the most recent version, and hey I am really
impressed, thanks a lot for all the work.
(I never really stress the local network, and the internet is 5/30 so I
consider to be on the safe side of #379 and decided to ignore your
recommendation about the suitability for main routers).
I tried the simple_qos.sh script and for my testing it is quite nice
indeed. The whole network stays quite responsive even during abuse. The whole
expeience was quite pleasant (using ssh over a ssl based VPN to remote control
an X11 session while stressing in and out direction); counter to my subjective
experience though netalyzr was detecting 3000 odd milliseconds of buffering
upstream (downstream was fine). Once I find more time I will have a go at
reproducing that. (Now I have to figure out whether I need to restart
simple_qos.sh anytime I down or up an interface; any pointer?) BTW, how do you
envision this to be started under the AQM tab; shall this start simple_qos or
rather debloat?
No, I had something more wonderful in mind.
Felix Fietkau has added fq_codel to the openwrt 3.3 kernel and to the
existing qos-scripts as of openwrt revision 31761.
Builds for 37 architectures and ~150 platforms are popping out as I write.
See
http://buildbot.openwrt.org:8010/one_line_per_build
For details.
I will be obsoleting the CeroWrt aqm and aqm-scripts and simple_qos as
soon as the new qos-scripts handles ipv6 properly, and maybe get a
chance to add a trick or two to more to it.
Erics latest patch to fq_codel has not yet landed in openwrt.
Small observation, port 81 on the router seems open to the internet, easily
fixed, but maybe something you might want know :)
Patches gladly accepted. Frankly I'd hoped to have CeroWall done by now,
but, well, the ball's on the 20 yard line, and I need to bench myself
for a while.
Hopefully someone else can take it in for the score.
Anyway, thanks again
Sebastian
On May 14, 2012, at 1:59 PM, Dave Taht wrote:
A test release of CeroWrt is now available that has support for Kathie
Nichols' and Van Jacobson's new AQM, Codel , and Eric Dumazet's new
fair queuing implementation on top of that, fq_codel.
fq_codel is enabled on all interfaces by default. It is vastly simpler
than what we were using before (sfqred) and draws upon and improves on
the same body of ideas (head drop, fq, timestamping) but is now tied
to Kathie and Van's blinding insights as to a good drop strategy, and
Eric's successor-to-sfqred ideas as towards head of queue behavior,
modern amounts of flows, and cache line optimizations.
There is a simple_qos.sh script that can be set to your uplink and
downlink speeds, but no uci interface for it as yet, nor gui. (help on
finishing aqm-scripts and the luci interface gladly accepted)
To see all the chocolately goodness of what fq_codel can do to wired
and wireless latency, it would be good for more to play with it.
Benchmarks have been very good thus far, and more benchmarks and
analysis are highly desired.
Caveat:
This release suffers from an unrelated bug ( #379 ) and should NOT be
installed as your main router. I would love to beat this bug because
it's the only prio 1 remaining but thus far, no luck. Under lighter
loads CeroWrt appears to work just fine, but that's for me. YMMV.
Get it here: http://huchra.bufferbloat.net/~cero1/3.3/3.3.6-2/
--
Dave Täht
SKYPE: davetaht
US Tel: 1-239-829-5608
http://www.bufferbloat.net
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