[Cerowrt-devel] cerowrt-3.10.24-5 dev build released

Sebastian Moeller moeller0 at gmx.de
Fri Dec 20 16:01:52 EST 2013

Hi Dave,

On Dec 20, 2013, at 19:01 , Dave Taht <dave.taht at gmail.com> wrote:

> I wanted to say how much I was enjoying catching up on this thread.
> I think only one question came up for me during it, which is support
> for a bfifo and pfifo qdisc? (if I missed something let me know )
> Support for these are darn useful for the research and I have long
> meant to fold in the modified code I use for that. Byte limits are
> very common for cable and dsl technologies and doing tests with
> 64k,128k,256k, and 512k bfifos is quite revealing. (I have a ton of
> plots lying about for this, I should put them up somewhere)
> Sooo... I just checked in the limit stuff (untested) into aqm-scripts.
> It requires that the limit option be dynamic and exposed to the gui,
> and in the case of a bfifo is a byte limit rather than a packet limit.
> There needs to be sane values for limit clamped somehow, as 1000 bytes
> would be bad, and 512000 packets would be bad also.

	I just noticed we probably should go for ingress_Limit and egress_Limit as there are different in simple_qos.sh, I assume for a good reason…


> As for folding the selection of bfifo or pfifo into the gui, it's not
> clear that we are doing "researcher mode", vs "mom mode" in a suitably
> abstract way. Certainly I can imagine many a researcher wanting the
> gui.
> While I'm at it, there are some statistics like drops, and backlog,
> etc, that a gui-ish interface might help.
> polling tc -s qdisc show dev ge00 # and/or class show dev ge00
> I am curious if anyone is seeing the DMA tx error in 3.10.24-5? I have
> one box that has now been up 4.4 days with no errors, but I haven't
> pushed it. I'll be beating it up through the weekend and taking a look
> at the gui work so far.

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