From owner-freebsd-hackers@FreeBSD.ORG Mon Nov 17 15:34:29 2014 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 720909BF for ; Mon, 17 Nov 2014 15:34:29 +0000 (UTC) Received: from kerio.tuxis.nl (alcyone.saas.tuxis.net [31.3.111.19]) by mx1.freebsd.org (Postfix) with ESMTP id E42986C2 for ; Mon, 17 Nov 2014 15:34:28 +0000 (UTC) X-Footer: dHV4aXMubmw= Received: from [31.3.104.222] ([31.3.104.222]) by kerio.tuxis.nl (Kerio Connect 8.4.0 RC 1) for mark@tuxis.nl; Mon, 17 Nov 2014 16:34:24 +0100 Date: Mon, 17 Nov 2014 16:34:24 +0100 Subject: Re: Slow nfsd write performance, tweaks needed X-Mailer: Kerio Connect 8.4.0 RC 1/Kerio Connect client X-User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/38.0.2125.101 Safari/537.36 Message-ID: <3194069010-2731@kerio.tuxis.nl> X-Priority: 3 Importance: Normal In-Reply-To: <3176881007-17726@kerio.tuxis.nl> MIME-Version: 1.0 MIME-Version: 1.0 MIME-Version: 1.0 From: Mark Schouten To: Mark Schouten , freebsd-hackers@freebsd.org MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg="sha1"; boundary="=-jk3hNIIPmdD2XyTiNqeA" X-Content-Filtered-By: Mailman/MimeDel 2.1.18-1 X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Nov 2014 15:34:29 -0000 --=-jk3hNIIPmdD2XyTiNqeA Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Hi, Mark Schouten , 17-11-2014 12:08: =20 The box is stable, but performs terribly. Surely, I'm doing something wrong= , but I would like some tips and tricks to speed things up.=20 So I upgraded to 10.1: iscsi:=C2=A0 =C2=A0=C2=A01m58.694s Linux nfs: =C2=A0 4m37.826s ufs via nfs: =C2=A0=C2=A02m49.135s zfs via nfs: =C2=A0=C2=A04m22.415s zfs with sync=3Ddisabled via nfs: =C2=A0=C2=A02m26.411s Please note that this is *with* sync on the Linux NFS Client. So this line in the 10.1 releasenotes actually means a lot: "Kernel RPC code, which is a base of NFS server took multiple optimizations= , that significantly improved its performance and=C2=A0SMP=C2=A0scalability= .=C2=A0(Sponsored by iXsystems)" So, indeed. 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