netdev - Re: SO_REUSEPORT - can it be done in kernel?

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Message-ID: <1299037473.2930.72.camel@edumazet-laptop>
Date:	Wed, 02 Mar 2011 04:44:33 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Thomas Graf <tgraf@...radead.org>,
	David Miller <davem@...emloft.net>, rick.jones2@...com,
	therbert@...gle.com, wsommerfeld@...gle.com,
	daniel.baluta@...il.com, netdev@...r.kernel.org
Subject: Re: SO_REUSEPORT - can it be done in kernel?

Le mercredi 02 mars 2011 à 11:09 +0800, Herbert Xu a écrit :
> On Wed, Mar 02, 2011 at 03:56:38AM +0100, Eric Dumazet wrote:
> >
> > Anyway, the SYN-ACK is generated by softirq, not really user choice.
> > CPU depends if NIC is RX multiqueue or RPS is setup.
> 
> Which is exactly what we want.  The RX queue selection should
> determine the TX cpu.
> 

This is working today with RFS/XPS. Or it should, indirectly.

OOO problem is handled as well.



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