From mboxrd@z Thu Jan 1 00:00:00 1970 From: Michal Simek Subject: Re: net: more accurate skb truesize - regression on Microblaze Date: Tue, 10 Apr 2012 11:29:30 +0200 Message-ID: <4F83FD7A.5010602@monstr.eu> References: <4F83EB0E.4020104@monstr.eu> <1334046444.3126.12.camel@edumazet-glaptop> <1334046746.3126.13.camel@edumazet-glaptop> <4F83F166.4010208@monstr.eu> <1334047544.3126.14.camel@edumazet-glaptop> <4F83F959.3070302@monstr.eu> <1334049896.3126.23.camel@edumazet-glaptop> Reply-To: monstr@monstr.eu Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, John Williams , David Miller To: Eric Dumazet Return-path: Received: from mail-ee0-f46.google.com ([74.125.83.46]:51664 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753538Ab2DJJ3f (ORCPT ); Tue, 10 Apr 2012 05:29:35 -0400 Received: by eekc41 with SMTP id c41so1259202eek.19 for ; Tue, 10 Apr 2012 02:29:33 -0700 (PDT) In-Reply-To: <1334049896.3126.23.camel@edumazet-glaptop> Sender: netdev-owner@vger.kernel.org List-ID: On 04/10/2012 11:24 AM, Eric Dumazet wrote: > On Tue, 2012-04-10 at 11:11 +0200, Michal Simek wrote: > >> ~ # cat /proc/sys/net/ipv4/tcp_rmem >> 4096 87380 130048 > > Are they default values, or tuned by admin ? > > 130048 bytes isnt enough to let TCP open its rcv window. yep. Default value after powerup. What's wrong with that? Michal -- Michal Simek, Ing. (M.Eng) w: www.monstr.eu p: +42-0-721842854 Maintainer of Linux kernel 2.6 Microblaze Linux - http://www.monstr.eu/fdt/ Microblaze U-BOOT custodian