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From: Arjan van de Ven <arjan@infradead.org>
To: Andreas Hartmann <andihartmann@01019freenet.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: More performance for the TCP stack by using additional hardware chip on NIC
Date: Sun, 17 Apr 2005 11:07:59 +0200	[thread overview]
Message-ID: <1113728880.17394.16.camel@laptopd505.fenrus.org> (raw)
In-Reply-To: <d3t63d$3qe$1@pD9F86D3F.dip0.t-ipconnect.de>

On Sun, 2005-04-17 at 10:17 +0200, Andreas Hartmann wrote:
> Hello!
> 
> Alacritech developed a new chip for NIC's
> (http://www.alacritech.com/html/tech_review.html), which makes it possible
> to take away the TCP stack from the host CPU. Therefore, the host CPU has
> more performance for the applications according Alacritech.

there are very many good reasons why this for linux is not the right
solution, including the fact that the linux tcp/ip stack already is
quite fast so the "gains" achieved aren't that stellar as the gains you
get when comparing to windows.

Also these types of solution always add quite a bit of overhead to
connection setup/teardown making it actually a *loss* for the "many
short connections" types of workloads. Now guess which things certain
benchmarks use, and guess what real world servers do :)




  reply	other threads:[~2005-04-17  9:14 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-17  8:17 Andreas Hartmann
2005-04-17  9:07 ` Arjan van de Ven [this message]
2005-04-17 10:29   ` Avi Kivity
2005-04-17 10:57     ` Arjan van de Ven
2005-04-17 12:32       ` Avi Kivity
2005-04-17 11:30     ` Willy Tarreau
2005-04-17 12:15       ` Avi Kivity
2005-04-17 19:43         ` Bernd Eckenfels
2005-04-17 20:36     ` David S. Miller
2005-04-18  5:35       ` Avi Kivity
2005-04-17 23:37 ` Horst von Brand
2005-04-18  4:08   ` Kyle Moffett
2005-04-18  4:28     ` Willy Tarreau
     [not found] <3Udkm-7rV-7@gated-at.bofh.it>
     [not found] ` <3Ue6L-867-19@gated-at.bofh.it>
     [not found]   ` <3Ufm9-IB-3@gated-at.bofh.it>
     [not found]     ` <3Ugid-1w6-25@gated-at.bofh.it>
2005-04-17 19:04       ` Andreas Hartmann
2005-04-18  8:27         ` Denis Vlasenko

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