From owner-svn-src-all@FreeBSD.ORG Sun Apr 25 00:18:39 2010 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id BED64106566B; Sun, 25 Apr 2010 00:18:39 +0000 (UTC) (envelope-from bruce@cran.org.uk) Received: from muon.cran.org.uk (unknown [IPv6:2001:470:1f09:679::1]) by mx1.freebsd.org (Postfix) with ESMTP id 81B708FC08; Sun, 25 Apr 2010 00:18:39 +0000 (UTC) Received: from muon.cran.org.uk (localhost [127.0.0.1]) by muon.cran.org.uk (Postfix) with ESMTP id 6D9D6C400C; Sun, 25 Apr 2010 00:18:38 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on muon.cran.org.uk X-Spam-Level: X-Spam-Status: No, score=-2.8 required=8.0 tests=AWL,BAYES_00,RDNS_DYNAMIC autolearn=no version=3.2.5 Received: from core.draftnet (87-194-158-129.bethere.co.uk [87.194.158.129]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by muon.cran.org.uk (Postfix) with ESMTPSA; Sun, 25 Apr 2010 00:18:38 +0000 (UTC) From: Bruce Cran To: Luigi Rizzo Date: Sun, 25 Apr 2010 01:18:36 +0100 User-Agent: KMail/1.13.2 (FreeBSD/9.0-CURRENT; KDE/4.4.2; amd64; ; ) References: <201004121637.o3CGbjSK080066@svn.freebsd.org> In-Reply-To: <201004121637.o3CGbjSK080066@svn.freebsd.org> MIME-Version: 1.0 Content-Type: Text/Plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201004250118.36906.bruce@cran.org.uk> Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r206497 - in head: sbin/geom/class sbin/geom/class/sched sys/geom/sched sys/modules/geom sys/modules/geom/geom_sched sys/modules/geom/geom_sched/gs_sched sys/modules/geom/geom_sched/gsc... X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 25 Apr 2010 00:18:39 -0000 On Monday 12 April 2010 17:37:45 Luigi Rizzo wrote: > Author: luigi > Date: Mon Apr 12 16:37:45 2010 > New Revision: 206497 > URL: http://svn.freebsd.org/changeset/base/206497 > > Log: > Bring in geom_sched, support for scheduling disk I/O requests > in a device independent manner. Also include an example anticipatory > scheduler, gsched_rr, which gives very nice performance improvements > in presence of competing random access patterns. The example in gsched(8) says to use "-s rr", but it looks like it should be "-a rr"? -- Bruce Cran