From: Aaron Wood <woody77@gmail.com>
To: Dave Taht <dave.taht@gmail.com>
Cc: Noah Causin <n0manletter@gmail.com>,
make-wifi-fast@lists.bufferbloat.net,
Simon Wunderlich <sw@simonwunderlich.de>,
"cerowrt-devel@lists.bufferbloat.net"
<cerowrt-devel@lists.bufferbloat.net>,
Felix Fietkau <nbd@nbd.name>
Subject: Re: [Make-wifi-fast] [Cerowrt-devel] wifi airtime fairness patches could use eyeballs and testing
Date: Sun, 14 Aug 2016 16:04:13 -0700 [thread overview]
Message-ID: <CALQXh-PEdbGLUZa3GUVrNqDLkuzgKt5_+dj31g6PG0rXsOMgug@mail.gmail.com> (raw)
In-Reply-To: <CAA93jw72MtJNShBFHrvT-B5-o5MSwcbMK5LPQ9h9Ze5_kqndxw@mail.gmail.com>
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On Sun, Aug 14, 2016 at 4:02 PM, Dave Taht <dave.taht@gmail.com> wrote:
> On Mon, Aug 15, 2016 at 12:49 AM, Aaron Wood <woody77@gmail.com> wrote:
> > On Sun, Aug 14, 2016 at 3:21 PM, Dave Taht <dave.taht@gmail.com> wrote:
> >>
> >>
> >> Ideas as to why crypto chops off so much throughput in the first place
> >> (from 120mbit to 80), and as to what else to poke into with crypto on,
> >> would be nice.
> >
> >
> > Crypto as in WPA2? If 1 client is fine, but multiple clients is not, my
> > guess is that changing the AES key in the crypto accelerator is
> > slow/difficult, and so what you're seeing is the lost time as it switches
> > security contexts.
>
> 1 client suffers degradation with more than one flow in flight, being
> fq'd, and crypted with wpa2.
>
> I'll have plots in the morning.
>
So it's not, that, then. Unless it's doing something dumb with the keys
when it switches flows (since that's now an interrupt back up to the
driver?)
-Aaron
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prev parent reply other threads:[~2016-08-14 23:04 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-10 11:28 [Make-wifi-fast] " Dave Taht
2016-08-10 13:06 ` Noah Causin
2016-08-10 13:11 ` Dave Taht
2016-08-10 14:47 ` [Make-wifi-fast] [Cerowrt-devel] " Dave Täht
2016-08-10 15:04 ` [Make-wifi-fast] " Toke Høiland-Jørgensen
2016-08-10 19:35 ` Dave Taht
2016-08-10 20:06 ` Toke Høiland-Jørgensen
2016-08-10 21:50 ` Toke Høiland-Jørgensen
2016-08-10 21:58 ` Dave Taht
2016-08-10 22:05 ` Toke Høiland-Jørgensen
2016-08-10 22:07 ` Toke Høiland-Jørgensen
2016-08-10 22:18 ` Jonathan Morton
2016-08-10 22:45 ` Toke Høiland-Jørgensen
2016-08-11 6:43 ` Dave Taht
2016-08-11 9:16 ` Toke Høiland-Jørgensen
2016-08-11 9:38 ` Jeremy Harris
2016-08-14 22:21 ` Dave Taht
2016-08-14 22:49 ` [Make-wifi-fast] [Cerowrt-devel] " Aaron Wood
2016-08-14 23:02 ` Dave Taht
2016-08-14 23:04 ` Aaron Wood [this message]
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