From owner-freebsd-fs@FreeBSD.ORG Fri Feb 4 17:28:40 2011 Return-Path: Delivered-To: freebsd-fs@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id B9985106566B for ; Fri, 4 Feb 2011 17:28:40 +0000 (UTC) (envelope-from bruce@cran.org.uk) Received: from muon.cran.org.uk (muon.cran.org.uk [IPv6:2a01:348:0:15:5d59:5c40:0:1]) by mx1.freebsd.org (Postfix) with ESMTP id E1C388FC21 for ; Fri, 4 Feb 2011 17:28:39 +0000 (UTC) Received: from muon.cran.org.uk (localhost [127.0.0.1]) by muon.cran.org.uk (Postfix) with ESMTP id 76EC2E7598; Fri, 4 Feb 2011 17:28:38 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=cran.org.uk; h=date:from :to:cc:subject:message-id:in-reply-to:references:mime-version :content-type:content-transfer-encoding; s=mail; bh=NGy9NO3zzlR5 J2xwTCwEVA6tzI4=; b=hLGJmQ+60zuOE7rWsKLqdpHJibRp3ik/dQVVmEKxNjbj LNlCes5hgrDJP6/PB0QWWcIIUNiHB48Et70TnjqHiB9IfR7j3WtnB+wtdAMrCDe/ Xc9rIWA3msRkvX4wie5ouyhlBnDRE1jAhJ1//TdkizKtPAmVbOGfEb4RlL8kxN8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=cran.org.uk; h=date:from:to :cc:subject:message-id:in-reply-to:references:mime-version :content-type:content-transfer-encoding; q=dns; s=mail; b=HWETTj DWE8aHGHimPmWmcqH3ZPxjKENbvVnrS1a3G96zHzo2CAvXc08ix9190K4CK338yV AD6bqSzg4uQlVxIy/9LqQaSlx78f1mvUMjWZmIWlmo8AXWybhaHTacw/qkw2xm5x cZF29iobFpuIES6lT/D25pP0K8y01rDflsBng= Received: from unknown (client-86-23-50-224.brhm.adsl.virginmedia.com [86.23.50.224]) (using TLSv1 with cipher DHE-RSA-AES128-SHA (128/128 bits)) (No client certificate requested) by muon.cran.org.uk (Postfix) with ESMTPSA id 331B2E7594; Fri, 4 Feb 2011 17:28:38 +0000 (GMT) Date: Fri, 4 Feb 2011 17:28:22 +0000 From: Bruce Cran To: Freddie Cash Message-ID: <20110204172822.00006149@unknown> In-Reply-To: References: X-Mailer: Claws Mail 3.7.8cvs9 (GTK+ 2.16.6; i586-pc-mingw32msvc) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: FreeBSD Filesystems Subject: Re: geom_sched and ZFS X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Feb 2011 17:28:40 -0000 On Fri, 4 Feb 2011 08:40:03 -0800 Freddie Cash wrote: > Just curious if anyone has played around with geom_sched underneath > ZFS, and found it to be extremely worthwhile, or not worth the bother, > or if if it should be avoided altogether. ZFS has its own I/O scheduler so shouldn't have any use for geom_sched. See http://www.solarisinternals.com/wiki/index.php/ZFS_Performance for details. -- Bruce Cran