From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752140AbaBIPT0 (ORCPT ); Sun, 9 Feb 2014 10:19:26 -0500 Received: from mail-ee0-f66.google.com ([74.125.83.66]:39207 "EHLO mail-ee0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751715AbaBIPTY (ORCPT ); Sun, 9 Feb 2014 10:19:24 -0500 X-Greylist: delayed 844 seconds by postgrey-1.27 at vger.kernel.org; Sun, 09 Feb 2014 10:19:24 EST Date: Sun, 9 Feb 2014 16:05:11 +0100 From: Daniel Exner To: Borislav Petkov Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: Re: Poor network performance x86_64.. also with 3.13 Message-ID: <20140209160511.2f67866f@Mycroft> In-Reply-To: <20140120223752.GA3057@pd.tnic> References: <52DAD66F.7080306@dragonslave.de> <20140118195026.GA15543@pd.tnic> <52DB0439.2060905@dragonslave.de> <52DDA2CD.9040001@dragonslave.de> <20140120223752.GA3057@pd.tnic> X-Mailer: Claws Mail 3.9.3 (GTK+ 2.24.22; x86_64-frugalware-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by mail.home.local id s19FJaNj024865 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Hi all, Am Mon, 20 Jan 2014 23:37:52 +0100 schrieb Borislav Petkov : > On Mon, Jan 20, 2014 at 11:27:25PM +0100, Daniel Exner wrote: > > I just did the same procedure with Kernel Version 3.13: same poor > > rates. > > > > I think I will try to see of 3.12.6 was still ok and bisect from > > there. > > Or try something more coarse-grained like 3.11 first, then 3.12 and > then the -rcs in between. > I must apologize for suspecting the kernel for my problems. After some bisect attempts I finaly noticed the following: > cat /etc/sysctl.d/net.conf > net.ipv4.tcp_window_scaling = 1 > net.core.rmem_max = 16777216 > net.ipv4.tcp_rmem = 4096 87380 16777 > net.ipv4.tcp_wmem = 4096 1638 After removing those values I finally had sane iperf values. No idea how those got there, perhaps they made sense when I first setup the box, which is some years ago.. Anyway, thanks all for your help :) Greetings Daniel Exner -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.14 (GNU/Linux) iQIcBAEBCgAGBQJS95knAAoJEPI6v6bI/QkfZYYP/37WBvygR7gLKqFTYfQA2ALE n6cOLrogoJT8Cf3q1fLqKiSzPToxSuPBTTmQtaNnhxLKTCPFHxLYPbTdtlXGTPB1 vFVJmXg8WAM/kQD/IoHrMsZsHfRWZE+RtQrUfeQ4Ava6abmniBufVe7ERMuF6ddW 02F5COtw74LJuSbxS70Cn3reog/ExoIYOYKQn6+FpoKTME4WnZtA8DJxo1r077RL mNqo3D4OMrYdPhxyRjLygtCnmXuX/yynV2czBnFkME4f1B4P/1hIzqYCxa2dBQIM Pfr+b/TtyVZA3DsE1d22f/+34EFWE/06EM5l8KwImmRHGA9Ffx77jKX4sAxN0Hhg 9ZJleeddk4NahXur5WNAV4lrkiLUgGauC0k721KwBFecFy2gYK/OUIyOm/oA3IPT WAEeGT4nCfCa1vYfoZVBn5UWOZo1eLm5qh6dmGb9FHukmwWTEplRRvYDPyJNfmRg 0j5mvn7ymFIbnmkVSnBFdfJH0I6XhhiHQ9H3cb9It9OLH5eEK1x4AW1okkAwrquQ oNYkpq54aJS/3oDokyWN/Gkvkmmk+4Q6tpxQge0AQPhrNeft5X7b8VhffstWhTSF kO1ULQ+zOtRUHF6T5523qVcS3pzFfqQKPYPhhQspGvuPJEr0M94i2JS016Z84Cz6 krmaHvSO/MKFkm7w+x5d =90En -----END PGP SIGNATURE----- {.n++%ݶw{.n+{G{ayʇڙ,jfhz_(階ݢj"mG?&~iOzv^m ?I From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Exner Subject: Re: Poor network performance x86_64.. also with 3.13 Date: Sun, 9 Feb 2014 16:05:11 +0100 Message-ID: <20140209160511.2f67866f@Mycroft> References: <52DAD66F.7080306@dragonslave.de> <20140118195026.GA15543@pd.tnic> <52DB0439.2060905@dragonslave.de> <52DDA2CD.9040001@dragonslave.de> <20140120223752.GA3057@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: base64 Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Borislav Petkov Return-path: Received: from mail-ee0-f67.google.com ([74.125.83.67]:38105 "EHLO mail-ee0-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751424AbaBIPFU (ORCPT ); Sun, 9 Feb 2014 10:05:20 -0500 Received: by mail-ee0-f67.google.com with SMTP id d17so962445eek.2 for ; Sun, 09 Feb 2014 07:05:17 -0800 (PST) In-Reply-To: <20140120223752.GA3057@pd.tnic> Sender: netdev-owner@vger.kernel.org List-ID: LS0tLS1CRUdJTiBQR1AgU0lHTkVEIE1FU1NBR0UtLS0tLQ0KSGFzaDogU0hBNTEyDQoNCkhpIGFs bCwNCg0KQW0gTW9uLCAyMCBKYW4gMjAxNCAyMzozNzo1MiArMDEwMA0Kc2NocmllYiBCb3Jpc2xh diBQZXRrb3YgPGJwQGFsaWVuOC5kZT46DQoNCj4gT24gTW9uLCBKYW4gMjAsIDIwMTQgYXQgMTE6 Mjc6MjVQTSArMDEwMCwgRGFuaWVsIEV4bmVyIHdyb3RlOg0KPiA+IEkganVzdCBkaWQgdGhlIHNh bWUgcHJvY2VkdXJlIHdpdGggS2VybmVsIFZlcnNpb24gMy4xMzogc2FtZSBwb29yDQo+ID4gcmF0 ZXMuDQo+ID4gDQo+ID4gSSB0aGluayBJIHdpbGwgdHJ5IHRvIHNlZSBvZiAzLjEyLjYgd2FzIHN0 aWxsIG9rIGFuZCBiaXNlY3QgZnJvbQ0KPiA+IHRoZXJlLg0KPiANCj4gT3IgdHJ5IHNvbWV0aGlu ZyBtb3JlIGNvYXJzZS1ncmFpbmVkIGxpa2UgMy4xMSBmaXJzdCwgdGhlbiAzLjEyIGFuZA0KPiB0 aGVuIHRoZSAtcmNzIGluIGJldHdlZW4uDQo+IA0KDQpJIG11c3QgYXBvbG9naXplIGZvciBzdXNw ZWN0aW5nIHRoZSBrZXJuZWwgZm9yIG15IHByb2JsZW1zLiBBZnRlciBzb21lDQpiaXNlY3QgYXR0 ZW1wdHMgSSBmaW5hbHkgbm90aWNlZCB0aGUgZm9sbG93aW5nOg0KDQo+IGNhdCAvZXRjL3N5c2N0 bC5kL25ldC5jb25mDQo+IG5ldC5pcHY0LnRjcF93aW5kb3dfc2NhbGluZyA9IDENCj4gbmV0LmNv cmUucm1lbV9tYXggPSAxNjc3NzIxNg0KPiBuZXQuaXB2NC50Y3Bfcm1lbSA9IDQwOTYgODczODAg MTY3NzcNCj4gbmV0LmlwdjQudGNwX3dtZW0gPSA0MDk2ICAgICAgIDE2MzgNCg0KQWZ0ZXIgcmVt b3ZpbmcgdGhvc2UgdmFsdWVzIEkgZmluYWxseSBoYWQgc2FuZSBpcGVyZiB2YWx1ZXMuDQpObyBp ZGVhIGhvdyB0aG9zZSBnb3QgdGhlcmUsIHBlcmhhcHMgdGhleSBtYWRlIHNlbnNlIHdoZW4gSSBm aXJzdCBzZXR1cA0KdGhlIGJveCwgd2hpY2ggaXMgc29tZSB5ZWFycyBhZ28uLg0KDQpBbnl3YXks IHRoYW5rcyBhbGwgZm9yIHlvdXIgaGVscCA6KQ0KDQpHcmVldGluZ3MNCkRhbmllbCBFeG5lcg0K LS0tLS1CRUdJTiBQR1AgU0lHTkFUVVJFLS0tLS0NClZlcnNpb246IEdudVBHIHYxLjQuMTQgKEdO VS9MaW51eCkNCg0KaVFJY0JBRUJDZ0FHQlFKUzk1a25BQW9KRVBJNnY2YkkvUWtmWllZUC8zN1dC dnlnUjdnTEtxRlRZZlFBMkFMRQ0KbjZjT0xyb2dvSlQ4Q2YzcTFmTHFLaVN6UFRveFN1UEJUVG1R dGFObmh4TEtUQ1BGSHhMWVBiVGR0bFhHVFBCMQ0KdkZWSm1YZzhXQU0va1FEL0lvSHJNc1pzSGZS V1pFK1J0UXJVZmVRNEF2YTZhYm1uaUJ1ZlZlN0VSTXVGNmRkVw0KMDJGNUNPdHc3NExKdVNieFM3 MENuM3Jlb2cvRXhvSVlPWUtRbjYrRnBvS1RNRTRXblp0QThESnhvMXIwNzdSTA0KbU5xbzNENE9N cllkUGh4eVJqTHlndENubVh1WC95eW5WMmN6Qm5Ga01FNGYxQjRQLzFoSXpxWUN4YTJkQlFJTQ0K UGZyK2IvVHR5VlpBM0RzRTFkMjJmLyszNEVGV0UvMDZFTTVsOEt3SW1tUkhHQTlGZng3N2pLWDRz QXhOMEhoZw0KOVpKbGVlZGRrNE5haFh1cjVXTkFWNGxya2lMVWdHYXVDMGs3MjFLd0JGZWNGeTJn WUsvT1VJeU9tL29BM0lQVA0KV0FFZUdUNG5DZkNhMXZZZm9aVkJuNVVXT1pvMWVMbTVxaDZkbUdi OUZIdWttd1dURXBsUlJ2WURQeUpOZm1SZw0KMGo1bXZuN3ltRklibm1rVlNuQkZkZkpIMEk2WGho aUhROUgzY2I5SXQ5T0xINWVFSzF4NEFXMW9ra0F3cnF1UQ0Kb05Za3BxNTRhSlMvM29Eb2t5V04v R2t2a21tays0UTZ0cHhRZ2UwQVFQaHJOZWZ0NVg3YjhWaGZmc3RXaFRTRg0Ka08xVUxRK3pPdFJV SEY2VDU1MjNxVmNTM3B6RmZxUUtQWVBoaFFzcEd2dVBKRXIwTTk0aTJKUzAxNlo4NEN6Ng0Ka3Jt YUh2U08vTUtGa203dyt4NWQNCj05MEVuDQotLS0tLUVORCBQR1AgU0lHTkFUVVJFLS0tLS0NCg==