netdev - Re: [PATCH] sendfile() and UDP socket

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Message-ID: <20080923070133.GB26836@gondor.apana.org.au>
Date:	Tue, 23 Sep 2008 15:01:33 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Evgeniy Polyakov <johnpol@....mipt.ru>
Cc:	davem@...emloft.net, johaahn@...il.com, netdev@...r.kernel.org
Subject: Re: [PATCH] sendfile() and UDP socket

On Tue, Sep 23, 2008 at 10:27:10AM +0400, Evgeniy Polyakov wrote:
> On Tue, Sep 23, 2008 at 12:54:27PM +0800, Herbert Xu (herbert@...dor.apana.org.au) wrote:
> > I think this dicussion is moot since the only time you want to use
> > sendfile is for bulk transfers and these days anybody designing new
> > applications that does bulk transfers over UDP should be taken out
> > and shot.
> 
> One can protect himself pointing how slow may be memory bus in some
> hardware setup, which completely does not allow to perform any copy.

Yes but bulk transfers over UDP is a bad idea regardless of how
slow your bus is :)

So what application needs this?

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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