From owner-freebsd-net@freebsd.org Wed Aug 3 06:55:02 2016 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 C64DCBABA0F for ; Wed, 3 Aug 2016 06:55:02 +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 7082617F2; Wed, 3 Aug 2016 06:55:01 +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 2C82020005B; Wed, 3 Aug 2016 08:55:00 +0200 (CEST) Received: from mailgate.aei.mpg.de (localhost [127.0.0.1]) by localhost (Postfix) with SMTP id 1DD5C406ADE; Wed, 3 Aug 2016 08:55:00 +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 ECBA5406ADB; Wed, 3 Aug 2016 08:54:59 +0200 (CEST) Received: from arc.aei.uni-hannover.de ([130.75.117.1]) by intranet.aei.uni-hannover.de (IBM Domino Release 9.0.1FP5) with ESMTP id 2016080308545917-63351 ; Wed, 3 Aug 2016 08:54:59 +0200 Date: Wed, 3 Aug 2016 08:54:59 +0200 From: Gerrit =?ISO-8859-1?Q?K=FChn?= To: freebsd-net@freebsd.org Cc: Alan Somers Subject: Re: NFS on 10G interfaces still painfully slow Message-Id: <20160803085459.273a26404c4d37ee6b7e2b6f@aei.mpg.de> In-Reply-To: <31939_1470204015_57A1886F_31939_1565_1_20160803075954.35914021394d6c3f9b3802f3@aei.mpg.de> References: <20160802104929.a10602a4786c68b4547a45b9@aei.mpg.de> <31939_1470204015_57A1886F_31939_1565_1_20160803075954.35914021394d6c3f9b3802f3@aei.mpg.de> 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 9.0.1FP5|November 22, 2015) at 03/08/2016 08:54:59, Serialize by Router on intranet/aei-hannover(Release 9.0.1FP5|November 22, 2015) at 03/08/2016 08:54:59, Serialize complete at 03/08/2016 08:54:59 X-TNEFEvaluated: 1 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=ISO-8859-1 X-PMX-Version: 6.0.2.2308539, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2016.8.3.64517 X-PerlMx-Spam: Gauge=IIIIIIII, Probability=8%, Report=' 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_700_799 0, IN_REP_TO 0, LEGITIMATE_NEGATE 0, LEGITIMATE_SIGNS 0, MSG_THREAD 0, MULTIPLE_REAL_RCPTS 0, NO_URI_HTTPS 0, REFERENCES 0, __ANY_URI 0, __BOUNCE_CHALLENGE_SUBJ 0, __BOUNCE_NDR_SUBJ_EXEMPT 0, __C230066_P5 0, __CC_NAME 0, __CC_NAME_DIFF_FROM_ACC 0, __CC_REAL_NAMES 0, __CT 0, __CTE 0, __CT_TEXT_PLAIN 0, __HAS_CC_HDR 0, __HAS_FROM 0, __HAS_MSGID 0, __HAS_X_MAILER 0, __IN_REP_TO 0, __MIME_TEXT_ONLY 0, __MIME_VERSION 0, __REFERENCES 0, __SANE_MSGID 0, __SUBJ_ALPHA_END 0, __SUBJ_ALPHA_NEGATE 0, __TO_MALFORMED_2 0, __TO_NO_NAME 0, __URI_NO_WWW 0, __URI_NS ' X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 03 Aug 2016 06:55:02 -0000 On Wed, 3 Aug 2016 07:59:54 +0200 Gerrit K=FChn wrote about Re: NFS on 10G interfaces still painfully slow: GK> 1048576000 bytes transferred in 1.403620 secs (747051194 bytes/sec) GK> 1048576000 bytes transferred in 1.380546 secs (759537249 bytes/sec) Argh! ;-) Obviously, I cannot read and miscounted the number of digits. I should have read the seconds instead. 750MB/s is still not the maximum, but totally fine for my purposes here. Reverting step-by-step all the things I tried yesterday, it looks like disabling the sync on the zfs volume gave the biggest performance boost, and I simply overlooked the extra digit when it went from 25MB/s or so to 750MB/s. Sorry for the noise... cu Gerrit