From: Avi Kivity <avi@argo.co.il>
To: "David S. Miller" <davem@davemloft.net>
Cc: arjan@infradead.org, andihartmann@01019freenet.de,
linux-kernel@vger.kernel.org
Subject: Re: More performance for the TCP stack by using additional hardware chip on NIC
Date: Mon, 18 Apr 2005 08:35:07 +0300 [thread overview]
Message-ID: <4263470B.9000802@argo.co.il> (raw)
In-Reply-To: <20050417133620.04b4698d.davem@davemloft.net>
David S. Miller wrote:
>On Sun, 17 Apr 2005 13:29:14 +0300
>Avi Kivity <avi@argo.co.il> wrote:
>
>
>
>>TOEs can remove the data copy on receive. In some applications (notably
>>storage), where the application does not touch most of the data, this is
>>a significant advantage that cannot be achieved in a software-only
>>solution.
>>
>>
>
>You don't need to offload the TCP stack to make this case get
>zero-copy behavior.
>
>
yes, Willy Tarreau outlined how buffering on the nic and splitting the
dma can achieve zero copy.
are there any adapters out there which work this way?
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
next prev parent reply other threads:[~2005-04-18 5:35 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-17 8:17 More performance for the TCP stack by using additional hardware chip on NIC Andreas Hartmann
2005-04-17 9:07 ` Arjan van de Ven
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 [this message]
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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