From owner-cvs-all Tue Dec 7 10:22:35 1999 Delivered-To: cvs-all@freebsd.org Received: from mass.cdrom.com (castles516.castles.com [208.214.165.80]) by hub.freebsd.org (Postfix) with ESMTP id 5C5321548A; Tue, 7 Dec 1999 10:22:31 -0800 (PST) (envelope-from msmith@mass.cdrom.com) Received: from mass.cdrom.com (localhost [127.0.0.1]) by mass.cdrom.com (8.9.3/8.9.3) with ESMTP id KAA02863; Tue, 7 Dec 1999 10:24:28 -0800 (PST) (envelope-from msmith@mass.cdrom.com) Message-Id: <199912071824.KAA02863@mass.cdrom.com> X-Mailer: exmh version 2.1.1 10/15/1999 To: Matthew Dillon Cc: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/kern kern_shutdown.c In-reply-to: Your message of "Tue, 07 Dec 1999 10:09:47 PST." <199912071809.KAA30408@apollo.backplane.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 07 Dec 1999 10:24:28 -0800 From: Mike Smith Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk > I just realized --- softupdates doesn't use the ordered tag at all. > It only issues writes for buffers that can be written out of order, > then waits for the SCSI command to complete before issuing the > dependancies. It'd be interesting to elide the wait and see if this improved throughput. It's not (really) much of a safeguard once you assume that disks/downstream caches are write-buffering things anyway. (Making that behaviour default would not be a good idea, but it'd be interesting to see what impact it might have.) -- \\ Give a man a fish, and you feed him for a day. \\ Mike Smith \\ Tell him he should learn how to fish himself, \\ msmith@freebsd.org \\ and he'll hate you for a lifetime. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message