netdev - Re: [net-next PATCH] igb: update adapter stats when reading /proc/net/dev.

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Date:	Wed, 06 Oct 2010 23:36:11 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	hawk@...x.dk
Cc:	netdev@...r.kernel.org, jeffrey.t.kirsher@...el.com
Subject: Re: [net-next PATCH] igb: update adapter stats when reading
 /proc/net/dev.

From: Jesper Dangaard Brouer <hawk@...x.dk>
Date: Tue, 05 Oct 2010 16:18:33 +0200

> Network driver igb: Improve the accuracy of stats in /proc/net/dev, by
> updating the adapter stats when reading /proc/net/dev.  Currently the
> stats are updated by the watchdog timer every 2 sec, or when getting
> stats via ethtool -S.
> 
> A number of userspace apps read these /proc/net/dev stats every second,
> e.g. ifstat, which then gives a perceived very bursty traffic pattern,
> which is actually false.
> 
> Signed-off-by: Jesper Dangaard Brouer <hawk@...x.dk>

I assume that the Intel folks will take care of integrating this
now that the locking is fixed.

Thanks.
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