netdev - Re: [PATCH][XFRM] export SAD info

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Message-Id: <20070426.001050.97294686.davem@davemloft.net>
Date:	Thu, 26 Apr 2007 00:10:50 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	hadi@...erus.ca
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH][XFRM] export SAD info

From: jamal <hadi@...erus.ca>
Date: Wed, 25 Apr 2007 11:42:41 -0400

> [XFRM] export SAD info
> 
> On a system with a lot of SAs, counting SAD entries chews useful
> CPU time since you need to dump the whole SAD to user space;
> i.e something like ip xfrm state ls | grep -i src | wc -l
> I have seen taking literally minutes on a 40K SAs when the system
> is swapping.
> With this patch, some of the SAD info (that was already being tracked)
> is exposed to user space. i.e you do:
> ip xfrm state count
> And you get the count; you can also pass -s to the command line and
> get the hash info.
> 
> Signed-off-by: Jamal Hadi Salim <hadi@...erus.ca>

Applied, thanks Jamal.
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