Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965323AbbDOScU (ORCPT ); Wed, 15 Apr 2015 14:32:20 -0400 Received: from mail-ob0-f178.google.com ([209.85.214.178]:33003 "EHLO mail-ob0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S965299AbbDOScR (ORCPT ); Wed, 15 Apr 2015 14:32:17 -0400 Message-ID: <1429122734.7346.141.camel@edumazet-glaptop2.roam.corp.google.com> Subject: Re: [Xen-devel] "tcp: refine TSO autosizing" causes performance regression on Xen From: Eric Dumazet To: Rick Jones Cc: George Dunlap , Jonathan Davies , "xen-devel@lists.xensource.com" , Wei Liu , Ian Campbell , Stefano Stabellini , netdev , Linux Kernel Mailing List , Eric Dumazet , Paul Durrant , Christoffer Dall , Felipe Franciosi , linux-arm-kernel@lists.infradead.org, David Vrabel Date: Wed, 15 Apr 2015 11:32:14 -0700 In-Reply-To: <552EABA3.30109@hp.com> References: <1428596218.25985.263.camel@edumazet-glaptop2.roam.corp.google.com> <1428932970.3834.4.camel@edumazet-glaptop2.roam.corp.google.com> <1429115934.7346.107.camel@edumazet-glaptop2.roam.corp.google.com> <552E9E8D.1080000@eu.citrix.com> <1429118948.7346.114.camel@edumazet-glaptop2.roam.corp.google.com> <552EA2BC.5000707@eu.citrix.com> <1429120373.7346.125.camel@edumazet-glaptop2.roam.corp.google.com> <552EA604.8010400@hp.com> <1429121303.7346.126.camel@edumazet-glaptop2.roam.corp.google.com> <552EABA3.30109@hp.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.10.4-0ubuntu2 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 544 Lines: 15 On Wed, 2015-04-15 at 11:19 -0700, Rick Jones wrote: > Well, I'm not sure that it is George and Jonathan themselves who don't > want to change a sysctl, but the customers who would have to tweak that > in their VMs? Keep in mind some VM users install custom qdisc, or even custom TCP sysctls. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/