From owner-cvs-src Tue Mar 11 10:40:27 2003 Delivered-To: cvs-src@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B5DB537B401 for ; Tue, 11 Mar 2003 10:40:25 -0800 (PST) Received: from rootlabs.com (root.org [67.118.192.226]) by mx1.FreeBSD.org (Postfix) with SMTP id D437443F3F for ; Tue, 11 Mar 2003 10:40:23 -0800 (PST) (envelope-from nate@rootlabs.com) Received: (qmail 95662 invoked by uid 1000); 11 Mar 2003 18:40:21 -0000 Date: Tue, 11 Mar 2003 10:40:21 -0800 (PST) From: Nate Lawson To: Jeff Roberson Cc: cvs-all@FreeBSD.org, cvs-src@FreeBSD.org, src-committers@FreeBSD.org Subject: Re: [src] cvs commit: src/sys/kern vfs_cluster.c In-Reply-To: <20030311061408.A67A737B442@hub.freebsd.org> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-cvs-src@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, 10 Mar 2003, Jeff Roberson wrote: > Modified files: > sys/kern vfs_cluster.c > Log: > - Regularize variable usage in cluster_read(). > - Issue the io that we will later block on prior to doing cluster read ahead > so that it is more likely to be ready when we block. > - Loop issuing clustered reads until we've exhausted the seq count supplied > by the file system. > - Use a sysctl tunable "vfs.read_max" to determine the maximum number of > blocks that we'll read ahead. Thank you, this is exciting. I may get a chance to do some testing on this once my 5.x box is up again. -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-src" in the body of the message