From owner-freebsd-net@freebsd.org Fri Jun 26 09:59:56 2015 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AF73598C1B6 for ; Fri, 26 Jun 2015 09:59:56 +0000 (UTC) (envelope-from gerrit.kuehn@aei.mpg.de) Received: from umail.aei.mpg.de (umail.aei.mpg.de [194.94.224.6]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5AFBB19BD for ; Fri, 26 Jun 2015 09:59:55 +0000 (UTC) (envelope-from gerrit.kuehn@aei.mpg.de) Received: from mailgate.aei.mpg.de (mailgate.aei.mpg.de [194.94.224.5]) by umail.aei.mpg.de (Postfix) with ESMTP id BEBC320077E; Fri, 26 Jun 2015 11:59:53 +0200 (CEST) Received: from mailgate.aei.mpg.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id B321A405881; Fri, 26 Jun 2015 11:59:53 +0200 (CEST) Received: from intranet.aei.uni-hannover.de (ahin1.aei.uni-hannover.de [130.75.117.40]) by mailgate.aei.mpg.de (Postfix) with ESMTP id 6DC0C405880; Fri, 26 Jun 2015 11:59:53 +0200 (CEST) Received: from arc.aei.uni-hannover.de ([10.117.15.110]) by intranet.aei.uni-hannover.de (Lotus Domino Release 8.5.3FP6HF1691) with ESMTP id 2015062611594307-65996 ; Fri, 26 Jun 2015 11:59:43 +0200 Date: Fri, 26 Jun 2015 11:59:43 +0200 From: Gerrit =?ISO-8859-1?Q?K=FChn?= To: Rick Macklem Cc: freebsd-net@freebsd.org, carsten aulbert Subject: Re: NFS on 10G interface terribly slow Message-Id: <20150626115943.7d0b441cda2c6cc5b817b181@aei.mpg.de> In-Reply-To: <623856025.328424.1435279751389.JavaMail.zimbra@uoguelph.ca> References: <20150625145238.12cf9da3b368ef0b9a30f193@aei.mpg.de> <623856025.328424.1435279751389.JavaMail.zimbra@uoguelph.ca> Organization: Max Planck Gesellschaft X-Mailer: Sylpheed 3.4.2 (GTK+ 2.24.22; amd64-portbld-freebsd10.0) Mime-Version: 1.0 X-MIMETrack: Itemize by SMTP Server on intranet/aei-hannover(Release 8.5.3FP6HF1691 | May 7, 2015) at 26.06.2015 11:59:43, Serialize by Router on intranet/aei-hannover(Release 8.5.3FP6HF1691 | May 7, 2015) at 26.06.2015 11:59:53, Serialize complete at 26.06.2015 11:59:53 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII X-PMX-Version: 6.0.2.2308539, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2015.6.26.94818 X-PerlMx-Spam: Gauge=IIIIIIIII, Probability=9%, Report=' MULTIPLE_RCPTS 0.1, HTML_00_01 0.05, HTML_00_10 0.05, MIME_LOWER_CASE 0.05, BODYTEXTP_SIZE_3000_LESS 0, BODY_SIZE_1000_LESS 0, BODY_SIZE_2000_LESS 0, BODY_SIZE_5000_LESS 0, BODY_SIZE_7000_LESS 0, BODY_SIZE_900_999 0, NO_URI_HTTPS 0, REFERENCES 0, __ANY_URI 0, __BOUNCE_CHALLENGE_SUBJ 0, __BOUNCE_NDR_SUBJ_EXEMPT 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __MULTIPLE_RCPTS_CC_X2 0, __REFERENCES 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __SUBJ_ALPHA_NEGATE 0, __TO_MALFORMED_2 0, __URI_NO_PATH 0, __URI_NO_WWW 0, __URI_NS ' X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2015 09:59:56 -0000 On Thu, 25 Jun 2015 20:49:11 -0400 (EDT) Rick Macklem wrote about Re: NFS on 10G interface terribly slow: RM> Recent commits to stable/10 (not in 10.1) done by Alexander Motin RM> (mav@) might help w.r.t. write performance (it avoids large writes RM> doing synchronous writes when the wcommitsize is exceeded). If you can RM> try stable/10, that might be worth it. Ok, I'll schedule an update then, I guess. OTOH, Scott reported that a similar setup is working fine for him with 10.0 and 10.1, so there is probably not much to gain. I'll try anyway... RM> Otherwise, the main mount option you can try is "wcommitsize", which RM> you probably want to make larger. Hm, which size would you recommend? I cannot find anything about this setting, not even what the default value would be. Is this reflected in some sysctl, or how can I find out what the actual value is? cu Gerrit