From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755275Ab0C2Rp0 (ORCPT ); Mon, 29 Mar 2010 13:45:26 -0400 Received: from mail-bw0-f209.google.com ([209.85.218.209]:58873 "EHLO mail-bw0-f209.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755225Ab0C2RpY (ORCPT ); Mon, 29 Mar 2010 13:45:24 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=subject:from:to:cc:in-reply-to:references:content-type:date :message-id:mime-version:x-mailer:content-transfer-encoding; b=OcqdQK6S1JxCFZeWPl9ys2BM/aRBXug+lY37wE/STa08Z5TEXHwfI1N6OHeN/GSPMx sQEnbpxM8dr9rnmIzK2zLmn8VjauxHpkvLhOTSkTJajYTS4/DeaQ8JJDe3bG4ctqfwbQ /fsSO7bJMC6B/tGNApgte+LSpZS4SCn/JHxyw= Subject: Re: Network performance - iperf From: Eric Dumazet To: michal.simek@petalogix.com Cc: LKML , John Williams , netdev@vger.kernel.org, Grant Likely , John Linn , "Steven J. Magnani" , Arnd Bergmann , akpm@linux-foundation.org In-Reply-To: <4BB0C6E1.2090606@petalogix.com> References: <4BB09021.6020202@petalogix.com> <1269864994.2164.21.camel@edumazet-laptop> <4BB0BF28.5090505@petalogix.com> <4BB0C6E1.2090606@petalogix.com> Content-Type: text/plain; charset="UTF-8" Date: Mon, 29 Mar 2010 19:45:17 +0200 Message-ID: <1269884717.1958.2.camel@edumazet-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Le lundi 29 mars 2010 à 17:27 +0200, Michal Simek a écrit : > Michal Simek wrote: > > Eric Dumazet wrote: > >> Le lundi 29 mars 2010 à 13:33 +0200, Michal Simek a écrit : > >> > >>> Do you have any idea howto improve TCP/UDP performance in general? > >>> Or tests which can point me on weak places. > >> > >> Could you post "netstat -s" on your receiver, after fresh boot and your > >> iperf session, for 32 MB and 256 MB ram case ? > >> > > > > I am not sure if is helpful but look below. > > > Sorry I forget to c&p that second part. :-( > Sorry, your netstat is not up2date. If you cannot correct it to last version [ net-tools 1.60 , netstat 1.42 ], please send cat /proc/net/snmp cat /proc/net/netstat