netdev - Re: flow director and packet ordering

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Message-ID: <20090706011051.GB15156@gondor.apana.org.au>
Date:	Mon, 6 Jul 2009 09:10:51 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	peter.p.waskiewicz.jr@...el.com, netdev@...r.kernel.org,
	jeffrey.t.kirsher@...el.com, jesse.brandeburg@...el.com
Subject: Re: flow director and packet ordering

On Sun, Jul 05, 2009 at 03:53:54PM -0700, David Miller wrote:
>
> Flows map to queues, queues don't move.  Rather the mapping between
> flows and queues changes dynamically.

Oh that makes more sense.

In that case I don't see the big need in moving the flows/sockets
after establishment.  After all process migration should be rare,
so if it does occur then it's OK for the existing sockets to stay
on their original queue.

I'm curious about what the limit on the number of flows is though.
Because when you go above that limit performance will magically
suck :)

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