netdev - Re: [PATCH] Add useful per-connection TCP stats for diagnosis purpose.

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Message-ID: <1300612710.2831.106.camel@edumazet-laptop>
Date:	Sun, 20 Mar 2011 10:18:30 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jerry Chu <hkchu@...gle.com>
Cc:	Stephen Hemminger <shemminger@...tta.com>, netdev@...r.kernel.org
Subject: Re: [PATCH] Add useful per-connection TCP stats for diagnosis
 purpose.

Le dimanche 20 mars 2011 à 00:30 -0700, Jerry Chu a écrit :

> I presume the filtering of specific IP addrs/ports are done in the
> kernel to short-circuit the
> O(n) loop. Otherwise it seems moot (i.e., it still costs O(n)).
> 

Filtering is done in kernel, and we can extend filtering capa if
necessary.

/proc/net/tcp is a flat file, you cannot do this

> A quick look at inet_csk_diag_dump() does not reveal anything like
> that. But I haven't
> looked hard enough.

You should ;)

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