netdev - Re: OFT - reserving CPU's for networking

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Message-Id: <20100501.162949.163246592.davem@davemloft.net>
Date:	Sat, 01 May 2010 16:29:49 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	andi@...stfloor.org
Cc:	tglx@...utronix.de, shemminger@...tta.com, eric.dumazet@...il.com,
	netdev@...r.kernel.org, peterz@...radead.org
Subject: Re: OFT - reserving CPU's for networking

From: Andi Kleen <andi@...stfloor.org>
Date: Sun, 2 May 2010 00:58:15 +0200

>> We're tracking flow cpu location state at the socket operations, like
>> recvmsg() and sendmsg(), where it belongs.
>> 
>> Would you like us to call into the card drivers and firmware at these
>> spots instead?
> 
> No, that's not needed for lazy flow tracking like in netfilter or 
> some NICs, it doesn't need exact updates. It just works with seen network 
> packets. 

Well what we need is exact flow updates so that we steer packets
to where the applications actually are.

Andi, this discussion is going in circles, can I just say "yeah you're
right Andi" and this will satisfy your desire to be correct and we can
be done with this?

Thanks.
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