From owner-freebsd-geom@FreeBSD.ORG Wed Dec 7 18:09:50 2005 Return-Path: X-Original-To: freebsd-geom@freebsd.org Delivered-To: freebsd-geom@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B588516A42C for ; Wed, 7 Dec 2005 18:09:50 +0000 (GMT) (envelope-from pjd@garage.freebsd.pl) Received: from mail.garage.freebsd.pl (arm132.internetdsl.tpnet.pl [83.17.198.132]) by mx1.FreeBSD.org (Postfix) with ESMTP id 6A4B843D6B for ; Wed, 7 Dec 2005 18:09:28 +0000 (GMT) (envelope-from pjd@garage.freebsd.pl) Received: by mail.garage.freebsd.pl (Postfix, from userid 65534) id 890E652BC8; Wed, 7 Dec 2005 19:09:19 +0100 (CET) Received: from localhost (dke234.neoplus.adsl.tpnet.pl [83.24.8.234]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.garage.freebsd.pl (Postfix) with ESMTP id AA27850F92; Wed, 7 Dec 2005 19:09:14 +0100 (CET) Date: Wed, 7 Dec 2005 19:08:21 +0100 From: Pawel Jakub Dawidek To: OxY Message-ID: <20051207180821.GL53288@garage.freebsd.pl> References: <20051207165538.GJ53288@garage.freebsd.pl> <002201c5fb56$bff37590$0201a8c0@oxy> <20051207175359.GK53288@garage.freebsd.pl> <003a01c5fb58$3faca4e0$0201a8c0@oxy> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="3CAnR4CLEnEWqRMR" Content-Disposition: inline In-Reply-To: <003a01c5fb58$3faca4e0$0201a8c0@oxy> X-PGP-Key-URL: http://people.freebsd.org/~pjd/pjd.asc X-OS: FreeBSD 7.0-CURRENT i386 User-Agent: mutt-ng/devel-r535 (FreeBSD) X-Spam-Checker-Version: SpamAssassin 3.0.4 (2005-06-05) on mail.garage.freebsd.pl X-Spam-Level: X-Spam-Status: No, score=-0.5 required=3.0 tests=BAYES_00,RCVD_IN_NJABL_DUL, RCVD_IN_SORBS_DUL autolearn=no version=3.0.4 Cc: freebsd-geom@freebsd.org Subject: Re: geom mirror write performance problem X-BeenThere: freebsd-geom@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: GEOM-specific discussions and implementations List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 Dec 2005 18:09:51 -0000 --3CAnR4CLEnEWqRMR Content-Type: text/plain; charset=iso-8859-2 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Dec 07, 2005 at 07:01:29PM +0100, OxY wrote: +> it is not possible to test it..but i think it's ok.. +> it worked great, the 5.4->6.0 upgrade is the source of the problem.. Actually it is possible... You said, when only one component is connected performance is fine. You can try something like this: # gmirror remove gm0 ad2 # swapoff /dev/mirror/gm0s1b (if you have one) and then run this script: #!/bin/sh dd if=3D/dev/zero of=3D/dev/ad2s1b bs=3D1m count=3D1000 & dd if=3D/dev/zero of=3D/dev/mirror/gm0s1b bs=3D1m count=3D1000 & wait --=20 Pawel Jakub Dawidek http://www.wheel.pl pjd@FreeBSD.org http://www.FreeBSD.org FreeBSD committer Am I Evil? Yes, I Am! --3CAnR4CLEnEWqRMR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDlyUVForvXbEpPzQRAnaJAJ4/PzZxvU47hjHOLcT/7Ns4xeR1wACff/RM clS+G7sP+s4Hq0/AlpdEmik= =1XtC -----END PGP SIGNATURE----- --3CAnR4CLEnEWqRMR--