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Re: TCP performance regression in mac80211 triggered by the fq code

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On 12 July 2016 at 12:09, Felix Fietkau <nbd@xxxxxxxx> wrote:
> Hi,
>
> With Toke's ath9k txq patch I've noticed a pretty nasty performance
> regression when running local iperf on an AP (running the txq stuff) to
> a wireless client.
>
> Here's some things that I found:
> - when I use only one TCP stream I get around 90-110 Mbit/s
> - when running multiple TCP streams, I get only 35-40 Mbit/s total

What is the baseline here (i.e. without fq/txq stuff)? Is it ~100mbps?

Did you try running multiple streams, each on separate tids (matching
the same AC perhaps) or different clients?


Michał
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