netdev - Re: [PATCH] net: fix softnet

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Message-ID: <i2o412e6f7f1004142045ie1337a77h3d13ab48393f374c@mail.gmail.com>
Date:	Thu, 15 Apr 2010 11:45:39 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Tom Herbert <therbert@...gle.com>, netdev@...r.kernel.org
Subject: Re: [PATCH] net: fix softnet_stat

On Thu, Apr 15, 2010 at 11:40 AM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le jeudi 15 avril 2010 à 05:28 +0200, Eric Dumazet a écrit :
>> >
>> > +   per_cpu(netdev_rx_stat, cpu).dropped++;
>>
>> This is a bit expensive, and could be a queue->rx_stat.dropped++
>> if netdev_rx_stat is moved inside queue structure.
>
> Hmm, this is not really needed, this event is the slow path and should
> almost never happen. This part of your fix is fine.
>

It there any document about /proc/net/softnet_stat?


-- 
Regards，
Changli Gao(xiaosuo@...il.com)
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