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From: =?utf-8?Q?Toke_H=C3=B8iland-J=C3=B8rgensen?= <toke@toke.dk>
To: Dave Taht <dave.taht@gmail.com>
References: <CAA93jw5YEaRG+AxoZav4QeOZtiXruBKgtLG3ro+tp0-Q=TW2Nw@mail.gmail.com>
Date: Sat, 01 Aug 2015 13:11:01 +0200
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	(Dave Taht's message of "Fri, 31 Jul 2015 07:16:20 -0700")
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Cc: cake@lists.bufferbloat.net, make-wifi-fast@lists.bufferbloat.net,
	flent-devel@flent.org
Subject: Re: [Cake] fiddling with variable bandwidth (emulating wifi
	rate	control) with cake and flent
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Dave Taht <dave.taht@gmail.com> writes:

> 2) sqm-scripts has changed dramatically since I last used it. What I
> used to use on debian was:
>
> IFACE=eth0 QDISC=codel UPLINK=x DOWNLINK=y ./simplest.qos
>
> what do I now?

Hmm, running from the git directory is not explicitly supported right
now. But if you do 'sudo make install' you should be able to do
IFACE=eth0 QDISC=codel SCRIPT=simplest.qos UPLINK=x DOWNLINK=y /usr/lib/sqm/start-sqm

If you define the variables in platform/linux/sqm.conf to something
reasonable, you could conceivably run it from the git checkout as
well...

> 4) flent needs to be able to sample at faster rates than it does.
> (theres a bug filed on this). I'd like to be able to see in detail the
> roughly 3 second period where
> the latency goes up when the bandwidth goes down.

This is more a limitation of the underlying tools. Not sure it's readily
solvable; I would rather not run things as root...

> 5) the qdisc stats code needs to work on openwrt (can't, no fractional sleep)
> (I keep threatening to rewrite this in c)

Well hopefully those threats will turn into reality at some point ;)

> 6) bugs in the qdisc_stats plots, from sampling, to code output, to
> the last 2 plots,

Will look this over.

-Toke