netdev - Re: using huge numbers of queues

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Message-ID: <20091009010222.GA31998@gondor.apana.org.au>
Date:	Fri, 9 Oct 2009 10:02:22 +0900
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Andrew Grover <andy.grover@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: using huge numbers of queues

On Wed, Oct 07, 2009 at 02:59:49PM -0700, Andrew Grover wrote:
> 
> Thinking about this reminded me of VJ's 2006 netchannel concept, which
> although not adopted, was pretty interesting. Would having 1 queue per
> socket (or at least 1 per process) and hw that is able to filter
> individual flows (I think the Intel 82599 can do this now for up to
> 128) perhaps make netchannels workable? At least this would get all
> processing out of int/bh and into process context, if not userspace,
> no?

This is exactly right.  Having one socket per queue would allow
the netchannel concept to become reality without compromising
features such as netfilter.

Cheers,
--
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Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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