[Cerowrt-devel] bulk packet transmission

[Dave Taht]

I have some hope that the skb->xmit_more API could be used to make
aggregating packets in wifi on an AP saner. (my vision for it was that
the overlying qdisc would set xmit_more while it still had packets
queued up for a given station and then stop and switch to the next.
But the rest of the infrastructure ended up pretty closely tied to
BQL....)

Jesper just wrote a nice piece about it also.
http://netoptimizer.blogspot.com/2014/10/unlocked-10gbps-tx-wirespeed-smallest.html

It was nice to fool around at 10GigE for a while! And netperf-wrapper
scales to this speed also! :wow:

I do worry that once sch_fq and fq_codel support is added that there
will be side effects. I would really like - now that there are al
these people profiling things at this level to see profiles including
those qdiscs.

/me goes grumbling back to thinking about wifi.

On Thu, Oct 9, 2014 at 12:40 PM, David Lang <david at lang.hm> wrote:
> lwn.net has an article about a set of new patches that avoid some locking
> overhead by transmitting multiple packets at once.
>
> It doesn't work for things with multiple queues (like fq_codel) in it's
> current iteration, but it sounds like something that should be looked at and
> watched for latency related issues.
>
> http://lwn.net/Articles/615238/
>
> David Lang
> _______________________________________________
> Cerowrt-devel mailing list
> Cerowrt-devel at lists.bufferbloat.net
> https://lists.bufferbloat.net/listinfo/cerowrt-devel



-- 
Dave Täht

https://www.bufferbloat.net/projects/make-wifi-fast