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From: Matthew Ford <ford@isoc.org>
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Date: Thu, 20 Jun 2013 09:58:15 +0100
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To: Dave Taht <dave.taht@gmail.com>
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Subject: Re: [Bloat] low latency workshop
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On 19 Jun 2013, at 22:27, Dave Taht <dave.taht@gmail.com> wrote:

> I was trying to find the isoc/rite low latency workshop info

http://www.internetsociety.org/latency2013

> via
> google today and stumbled across a competing event in london  and a
> whole website dedicated to the latency issues in the trading industry.

Interesting, thanks for the pointer. I wouldn't describe it as competing =
though - seems pretty focussed on the high-frequency trading =
application, although there is obviously overlap.

Mat

>=20
> This talk
>=20
> =
http://low-latency.com/audio/london-low-latency-summit-2013-workshop-low-l=
atency-application-engineering
>=20
> had slide 18 showing the enormous improvement in from-userspace
> timestamp fetching behavior in linux - from 637ns for CLOCK_REALTIME
> in 2.6.27, to 35ns in linux 3.5.4...
>=20
> Based on some old scars I was leery of using timestamping in userspace
> for some tasks. No longer.
>=20
> There are also some boards that look useful for analyzing hard
> networking stuff in detail mentioned.
>=20
> --=20
> Dave T=E4ht
>=20
> Fixing bufferbloat with cerowrt: =
http://www.teklibre.com/cerowrt/subscribe.html
> _______________________________________________
> Bloat mailing list
> Bloat@lists.bufferbloat.net
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