linux-kernel - Re: Oddness with reading /proc/net/tcp

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Date:	Fri, 13 Apr 2007 19:40:12 +0200
From:	Eric Dumazet <dada1@...mosbay.com>
To:	Witold Krecicki <wpk@...-labs.com>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Oddness with reading /proc/net/tcp

Witold Krecicki a écrit :
> Reading data from /proc/net/tcp is slower with progress of reading data, 
> tested on system with >200k active connections.
> 

Yes, this is a known problem.

This is O(N^2) algo.

Use ss from iproute package to get better performance... (less than 15 seconds 
  for 200k active connections)



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