netdev - Re: surprising memory request

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Message-ID: <50FCD0CC.2010009@redhat.com>
Date:	Mon, 21 Jan 2013 13:23:24 +0800
From:	Jason Wang <jasowang@...hat.com>
To:	David Woodhouse <dwmw2@...radead.org>
CC:	Eric Dumazet <eric.dumazet@...il.com>,
	Dirk Hohndel <dirk@...ndel.org>, netdev@...r.kernel.org
Subject: Re: surprising memory request

On 01/19/2013 01:59 AM, David Woodhouse wrote:
> On Fri, 2013-01-18 at 09:46 -0800, Eric Dumazet wrote:
>> #define MAX_TAP_QUEUES 1024
>>
>> Thats crazy if your machine has say 8 cpus.
> Even crazier if your userspace is never going to *use* MQ. Can't we
> default to one queue unless userspace explicitly requests more?
>

Yes, if userspace never use MQ, we just use a one queue netdevice. Just
draft a patch fro Dirk to test.

Thanks
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