[Bloat] an update on cerowrt-rc7

[Riccardo Giuntoli]

What about consider to give a version to people that want to try cerowrt on
other atheros based platforms?

Like all the http://routerboard.com ones?



On Wed, Oct 26, 2011 at 9:02 PM, David Täht <dave.taht at gmail.com> wrote:

> A new smoketest of rc7 is out:
>
> http://huchra.bufferbloat.net/**~cero1/rc7-smoketests/rc7-**smoketest5/<http://huchra.bufferbloat.net/%7Ecero1/rc7-smoketests/rc7-smoketest5/>
>
> Which is basically linux-3.0.8 + openwrt head + support for the wndr3800
>
> CeroWrt IS independently buildable now:
>
> http://www.bufferbloat.net/**projects/cerowrt/wiki/**
> Building_Cerowrt_on_your_own_**machine<http://www.bufferbloat.net/projects/cerowrt/wiki/Building_Cerowrt_on_your_own_machine>
>
> It's getting easier to install:
>
> http://www.bufferbloat.net/**projects/cerowrt/wiki/OCEAN_**
> CITY_INSTALLATION_GUIDE<http://www.bufferbloat.net/projects/cerowrt/wiki/OCEAN_CITY_INSTALLATION_GUIDE>
>
> and the roadmap remains overwhelming.
>
> http://www.bufferbloat.net/**projects/cerowrt/roadmap<http://www.bufferbloat.net/projects/cerowrt/roadmap>
>
> ...
>
> I was feeling kind of discouraged about the prospect of renewing work on
> cerowrt this month.
>
> The goal has been to get to where the OS and drivers are stable, then do a
> bunch of *repeatable* bloat-related experiments - then kick back into a
> development mode with those results.
>
> we've been spending increasing amounts of time validating the lowest levels
> of the stack - re-analyzing the original bufferbloat data, as one example -
> and we've designed a couple experiments that should reliably show
> bufferbloat AND hopefully various mitigations against it, once they exist -
> that can be repeated by engineers (in front of management!) and students
> using the thing.
>
> and I've been thinking really hard about what a good API to Minstrel would
> be...
>
> All of which was more fun that getting cerowrt from rc to 1.0.
>
> Because, on the whole, the last rc4 is working pretty good.
>
> AND the prospect of building an entire OS AGAIN and burning it into the
> machines at bloatlab #1 was a bit daunting. Not only that, but enough fixes
> had gone into the linux-3.1 release (mostly ipv6 related) that I was
> thinking it would be best to aim for that as a final target for 1.0 than
> stick with 3.0...
>
> And THEN I was pleased to see people actively pointing to the project
> today.
>
> http://ask.slashdot.org/story/**11/10/25/1429235/ask-slashdot-**
> dd-wrt-upgrade-to-80211n<http://ask.slashdot.org/story/11/10/25/1429235/ask-slashdot-dd-wrt-upgrade-to-80211n>
>
> darn it... so my enthusiasm is back closer to where it belongs, and I got
> that smoketest out. Darn it, bruce...
>
> So.
>
> My thx to Petri Rosenström for simply *ignoring* the steaming pile of
> patches for the wndr3800 that are on
> "http://www.myopenrouter.com/**download/list?cat=64<http://www.myopenrouter.com/download/list?cat=64>
> "
>
> and just creating the *one* tiny patch that mattered. Not only that, but
> openwrt head for the 3800 has working leds and ipv6, which the one on the
> above site's betas do not. If anyone has a 3800, please give this smoketest
> a try.
>
> (I'm told the wndr3700*v3* is basically the same as a 3700v1 - not enough
> flash! So I hope the 3800 works out if the 3700v2 stops being available.)
>
> I did one of the aforementioned experiments (I will write it up after
> linuxcon), showing how much lower latency txqueuelen of less than 40 was
> than 1000, under load...
>
> and a talk last week at the lincs lab, then two in oslo this week... and
> I'm in Prague now for linuxcon where I am happily NOT speaking, just
> planning to kibitz on john linville's talk (hi john!)... and after that I'm
> going to buckle down for the winter and start attacking some of the harder,
> higher level stuff left on the roadmap.
>
> I'll make a call on 3.1 after linuxcon. Thoughts welcomed... help
> welcomed...
>
> I also have a raft of tiny patches queued up - notably what I think is a
> fix to ipv6 related 802.11e classification that I've yet to test, and a
> revamp of the openwrt qos system, and I finally got a spare box that I can
> do debloat-testing kernel work on without risking my laptop's life...
>
> And I keep struggling to remember the name of this GREAT jazz club in
> paris... I got a lot of work done there one night while grooving on it...
> and is anybody else in prague this week?
>
> --
> Dave Täht
>
>
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>
>


-- 
Name: Riccardo Giuntoli
Email: taglio at gmail.com
Location: Canyelles, BCN, España
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