netdev - Re: [PATCH 1/3] Kernel interfaces for multiqueue aware socket

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Date:	Fri, 17 Dec 2010 07:50:34 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Junchang Wang <junchangwang@...il.com>
Cc:	Changli Gao <xiaosuo@...il.com>, Fenghua Yu <fenghua.yu@...el.com>,
	"David S. Miller" <davem@...emloft.net>,
	"Fastabend, John R" <john.r.fastabend@...el.com>,
	"Tang, Xinan" <xinan.tang@...el.com>,
	netdev <netdev@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/3] Kernel interfaces for multiqueue aware socket

Le vendredi 17 décembre 2010 à 14:22 +0800, Junchang Wang a écrit :
> On Thu, Dec 16, 2010 at 9:28 AM, Changli Gao <xiaosuo@...il.com> wrote:
> > On Thu, Dec 16, 2010 at 9:14 AM, Fenghua Yu <fenghua.yu@...el.com> wrote:
> >>
> >> SKF_AD_QUEUE doesn't know number of rx queues. Thus user application can't
> >> specify right SKF_AD_QUEUE.
> >
> > It is wrong. AFAIK, you can get the queue number through
> > /sys/class/net/eth*/queues/ or /proc/interrupts
> >
> 
> Valuable comment. Thanks.
> 
> >
> > If you turn to SKF_AD_QUEUE, I think no patch for kernel is needed.
> >
> This patch set is about parallelization of socket interfaces to gain
> performance boost (say, from 1Mpps to around 5Mpps), rather than
> simply bounding socket to cpu/queue. Therefore, it does worth having.
> 

Definitely, but this needs to be designed so that it can be used by even
dumb applications :)



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