From: "John Ye" <johny@asimco.com.cn>
To: "David Miller" <davem@davemloft.net>
Cc: <netdev@vger.kernel.org>, <kuznet@ms2.inr.ac.ru>,
<pekkas@netcore.fi>, <jmorris@namei.org>, <kaber@coreworks.de>
Subject: Re: [PATCH: 2.6.13-15-SMP 3/3] network: concurrently run softirq network code on SMP
Date: Fri, 21 Sep 2007 17:25:10 +0800 [thread overview]
Message-ID: <00e601c7fc31$4ed29890$ca8510ac@asimco> (raw)
In-Reply-To: 20070920.104614.58454013.davem@davemloft.net
David,
Thanks for your reply. I understand it's not worth to do.
I have made it a loadable module to fulfill the function. it mainly for busy
NAT gateway server with SMP to speed up.
John Ye
----- Original Message -----
From: "David Miller" <davem@davemloft.net>
To: <johny@asimco.com.cn>
Cc: <netdev@vger.kernel.org>; <kuznet@ms2.inr.ac.ru>; <pekkas@netcore.fi>;
<jmorris@namei.org>; <kaber@coreworks.de>
Sent: Friday, September 21, 2007 1:46 AM
Subject: Re: [PATCH: 2.6.13-15-SMP 3/3] network: concurrently run softirq
network code on SMP
>
> The whole reason the queues are per-cpu is so that we do not
> have to touch remote processor state nor use locks of any
> kind whatsoever.
>
> With multi-queue networking cards becoming more and more
> available, which will split up the packet workload in
> hardware across all available cpus, there is less and less
> reason to make a patch like this one.
>
> We've known about this issue for ages, and if we felt it
> was appropriate to make this change, we would have done
> so years ago.
>
next prev parent reply other threads:[~2007-09-21 9:23 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <002b01c7fb86$02b27df0$d6ddfea9@JOHNYE1>
2007-09-20 17:46 ` [PATCH: 2.6.13-15-SMP 3/3] network: concurrently run softirq network code on SMP David Miller
2007-09-21 9:25 ` John Ye [this message]
2007-09-21 11:43 ` jamal
2007-09-21 11:47 ` jamal
2007-09-23 3:45 ` [PATCH: 2.6.13-15-SMP 3/3] network: concurrently run softirqnetwork " john ye
2007-09-20 13:04 [PATCH: 2.6.13-15-SMP 3/3] network: concurrently run softirq network " john ye
2007-09-20 18:11 ` Stephen Hemminger
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