[Cerowrt-devel] bulk packet transmission

Dave Taht dave.taht at gmail.com
Thu Oct 9 15:48:35 EDT 2014

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

Jesper just wrote a nice piece about it also.

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
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> Cerowrt-devel at lists.bufferbloat.net
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Dave Täht


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