linux-kernel - Re: [PATCH] phonet: Check input from user before allocating

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Date:	Tue, 03 Apr 2012 04:34:12 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Rick Jones <rick.jones2@...com>
Cc:	David Miller <davem@...emloft.net>, remi@...lab.net,
	levinsasha928@...il.com, remi.denis-courmont@...ia.com,
	davej@...hat.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] phonet: Check input from user before allocating

On Mon, 2012-04-02 at 19:29 -0700, Rick Jones wrote:
> On 04/02/2012 07:23 PM, David Miller wrote:
> > From: Eric Dumazet<eric.dumazet@...il.com>
> > Date: Tue, 03 Apr 2012 04:15:04 +0200
> >
> >> Any idea of a representative benchmark in dgram af_unix ?
> >
> > Maybe you could try to make bw_unix from lmbench use
> > SOCK_DGRAM? :-)
> 
> I don't know it isn't entirely bitrotted, but there are streaming and 
> datagram AF_UNIX tests in netperf - they require conditional inclusion 
> via ./configure --enable-unixdomain:
> 
> http://www.netperf.org/svn/netperf2/trunk/doc/netperf.html#DG_005fSTREAM
> 

Ah yes of course, I'll try that.

BTW, do you have plans to support vmsplice()/splice() as a way to
provide 0-copy to TCP_STREAM ?

I ask this because I am currently working on fixing splice(pipe ->
socket) performance problem and need a standard benchmark to publish
performance results.

Thanks


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