From: Dave Taht <dave.taht@gmail.com>
To: Cake List <cake@lists.bufferbloat.net>
Subject: Re: [Cake] quick patch for split_gso
Date: Tue, 24 Jul 2018 21:35:04 -0700 [thread overview]
Message-ID: <CAA93jw6CHr3pCrc2TWUxTSuUkpVqsPHQKe2i_0TXqKBsxnj5Cw@mail.gmail.com> (raw)
In-Reply-To: <CAA93jw5xt65DvoVKHKo6m4a53PVgOnbXL+=5-hj4G1g8mdt5Rw@mail.gmail.com>
On Tue, Jul 24, 2018 at 9:32 PM Dave Taht <dave.taht@gmail.com> wrote:
>
> and... whew - even at a gbit, this makes bql's estimator get a smaller value.
>
> root@spaceheater:/sys/class/net/enp6s0/queues/tx-0/byte_queue_limits# cat limit
> 130554
> tc qdisc replace dev enp6s0 root cake bandwidth 1gbit
> run netperf a few times
root@spaceheater:/sys/class/net/enp6s0/queues/tx-0/byte_queue_limits# cat limit
42392
I was puzzled there for a while as to why line rate interpacket
latency was so much worse in the "final" version that went upstream. I
think BQL was even lower when I was testing on a different box than
spaceheater
>
> On Tue, Jul 24, 2018 at 9:11 PM Dave Taht <dave.taht@gmail.com> wrote:
> >
> > I was happy to see the API didn't need to get modified.
> >
> > Not even compile tested patch attached.
> >
> > also, in looking at the gso code, when enabled, is there any way to pull the
> > actual packets out in the stats?
> >
> > --
> >
> > Dave Täht
> > CEO, TekLibre, LLC
> > http://www.teklibre.com
> > Tel: 1-669-226-2619
>
>
>
> --
>
> Dave Täht
> CEO, TekLibre, LLC
> http://www.teklibre.com
> Tel: 1-669-226-2619
--
Dave Täht
CEO, TekLibre, LLC
http://www.teklibre.com
Tel: 1-669-226-2619
next prev parent reply other threads:[~2018-07-25 4:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-25 4:11 Dave Taht
2018-07-25 4:32 ` Dave Taht
2018-07-25 4:35 ` Dave Taht [this message]
2018-07-25 5:01 ` Dave Taht
2018-07-25 21:03 ` Dave Taht
2018-07-25 21:21 ` Dave Taht
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