From owner-freebsd-current@FreeBSD.ORG Mon Feb 28 18:34:21 2011 Return-Path: Delivered-To: freebsd-current@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 84F2C106566B; Mon, 28 Feb 2011 18:34:21 +0000 (UTC) (envelope-from freebsd-listen@fabiankeil.de) Received: from smtprelay04.ispgateway.de (smtprelay04.ispgateway.de [80.67.31.27]) by mx1.freebsd.org (Postfix) with ESMTP id 4090A8FC17; Mon, 28 Feb 2011 18:34:21 +0000 (UTC) Received: from [78.34.134.52] (helo=r500.local) by smtprelay04.ispgateway.de with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.68) (envelope-from ) id 1Pu7jP-0000km-6A; Mon, 28 Feb 2011 19:22:03 +0100 Date: Mon, 28 Feb 2011 19:21:29 +0100 From: Fabian Keil To: Pawel Jakub Dawidek Message-ID: <20110228192129.119cac0c@r500.local> In-Reply-To: <20110227202957.GD1992@garage.freebsd.pl> References: <20110227202957.GD1992@garage.freebsd.pl> X-Mailer: Claws Mail 3.7.8 (GTK+ 2.22.1; amd64-portbld-freebsd9.0) X-PGP-KEY-URL: http://www.fabiankeil.de/gpg-keys/freebsd-listen-2008-08-18.asc Mime-Version: 1.0 Content-Type: multipart/signed; micalg=PGP-SHA1; boundary="Sig_/fRlH.x0m6Y9akYPdbdZ42Lo"; protocol="application/pgp-signature" X-Df-Sender: 775067 Cc: freebsd-fs@FreeBSD.org, freebsd-current@FreeBSD.org Subject: Re: HEADS UP: ZFSv28 is in! X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 28 Feb 2011 18:34:21 -0000 --Sig_/fRlH.x0m6Y9akYPdbdZ42Lo Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Pawel Jakub Dawidek wrote: > I just committed ZFSv28 to HEAD. I updated the system without removing the tuning for ZFSv15 first, and somehow this completely messed up the performance. Booting the system took more than ten minutes and even once it was up it was next to unresponsive. I'm not sure which sysctl was to blame, but after removing all but vfs.zfs.arc_max=3D"800M" and rebooting, the problem was gone. I haven't seen this issue with earlier ZFS updates, so maybe this would be worth mentioning in UPDATING? Anyway, the things I tested so far (zfs/zpool upgrade, delegation, send, receive, snapshot) worked fine. Thanks a lot. Fabian --Sig_/fRlH.x0m6Y9akYPdbdZ42Lo Content-Type: application/pgp-signature; name=signature.asc Content-Disposition: attachment; filename=signature.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (FreeBSD) iEYEARECAAYFAk1r56wACgkQBYqIVf93VJ2kOgCdGadLXaY/LllO7L5HEG4BSAZ1 YtkAnA8D8O6UxW8hw3o9rTCEOfvKSX9t =UdGi -----END PGP SIGNATURE----- --Sig_/fRlH.x0m6Y9akYPdbdZ42Lo--