From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Roy Rietveld <rwm_rietveld@hotmail.com>
Cc: linux-os@analogic.com, linux-kernel@vger.kernel.org,
jengelh@linux01.gwdg.de
Subject: Re: TCP/IP send, sendfile, RAW
Date: Thu, 04 May 2006 23:22:58 +0100 [thread overview]
Message-ID: <1146781378.24513.1.camel@localhost.localdomain> (raw)
In-Reply-To: <BAY105-F166097660AAB32A85D4DD6E9B40@phx.gbl>
On Iau, 2006-05-04 at 18:42 +0000, Roy Rietveld wrote:
> i tried but it doesn't help, still 40MBits. Does send or sento cost a lot of
> cpu load.
That depends a lot on your hardware: Each UDP or TCP packet has to be
checksummed and loaded onto the network chip so there is memory
bandwidth used. There is also some CPU load but they are not horribly
complex code paths. Much of the performance depend son the network chip
next prev parent reply other threads:[~2006-05-04 22:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-04 17:19 Roy Rietveld
2006-05-04 17:41 ` Jan Engelhardt
2006-05-04 17:56 ` linux-os (Dick Johnson)
2006-05-04 18:05 ` Roy Rietveld
2006-05-04 18:27 ` linux-os (Dick Johnson)
2006-05-04 18:42 ` Roy Rietveld
2006-05-04 19:12 ` linux-os (Dick Johnson)
2006-05-04 19:43 ` Roy Rietveld
2006-05-04 19:48 ` Willy Tarreau
2006-05-04 21:21 ` Phillip Susi
2006-05-04 22:22 ` Alan Cox [this message]
2006-05-07 14:40 ` Mark Lord
2006-05-05 8:57 ` Denis Vlasenko
[not found] <445B165D.3000508@draigBrady.com>
2006-05-05 9:39 ` Roy Rietveld
2006-05-05 12:39 ` Avi Kivity
2006-05-05 14:25 ` Roy Rietveld
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