From mboxrd@z Thu Jan  1 00:00:00 1970
From: Eric Dumazet <eric.dumazet@gmail.com>
Subject: Re: [PATCH] Add useful per-connection TCP stats for diagnosis
 purpose.
Date: Sat, 19 Mar 2011 06:02:40 +0100
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Cc: Stephen Hemminger <shemminger@vyatta.com>, netdev@vger.kernel.org
To: Jerry Chu <hkchu@google.com>
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Le vendredi 18 mars 2011 =C3=A0 21:33 -0700, Jerry Chu a =C3=A9crit :

> I'm well aware of the past, hideous O(n**2) problem of reading
> /proc/net/tcp but I
> thought the problem has been fixed by Tom Herbert a while back, no?
> (See http://marc.info/?l=3Dlinux-netdev&m=3D127588123429437&w=3D2)
>=20

O(N) is still too slow, to gather stats for your socket, if you want to
gather stats once per second for example.

AFAIK, I am not sure we want to allow any user to access all these data
for all tcp sockets on the machine. This might have security impacts.