From owner-cvs-all Sun Nov 3 23:48:14 2002 Delivered-To: cvs-all@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CAFB937B401; Sun, 3 Nov 2002 23:48:12 -0800 (PST) Received: from critter.freebsd.dk (critter.freebsd.dk [212.242.86.163]) by mx1.FreeBSD.org (Postfix) with ESMTP id F3C4243E75; Sun, 3 Nov 2002 23:48:11 -0800 (PST) (envelope-from phk@critter.freebsd.dk) Received: from critter.freebsd.dk (localhost [127.0.0.1]) by critter.freebsd.dk (8.12.6/8.12.6) with ESMTP id gA47m19d090624; Mon, 4 Nov 2002 08:48:01 +0100 (CET) (envelope-from phk@critter.freebsd.dk) To: Doug Barton Cc: Kirk McKusick , cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org, Conrad Sabatier , Stijn Hoop , current@FreeBSD.org, raymond.j.kohler@lmco.com, drosih@rpi.edu, ak03@gte.com Subject: Re: cvs commit: src/sys/fs/specfs spec_vnops.c In-Reply-To: Your message of "Sun, 03 Nov 2002 23:40:12 PST." <3DC6245C.8D31A6A7@FreeBSD.org> Date: Mon, 04 Nov 2002 08:48:01 +0100 Message-ID: <90623.1036396081@critter.freebsd.dk> From: Poul-Henning Kamp Sender: owner-cvs-all@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG In message <3DC6245C.8D31A6A7@FreeBSD.org>, Doug Barton writes: >Kirk, > >I'm adding a bunch of people to the list who were involved in a thread >on -current on this topic. I also tried this change and noticed that >things did seem a tiny bit snappier (although my system is slow enough >that it could have just been my imagination). All things considered, I think we should just pla to leave it this way for 5.0-R. Until now people were used to wait for fsck to finish, at least now they can do something in while it runs. I belive GEOM provides the framework where we can properly tag I/O requests with a priority, propagate that priority down to the device drivers and act accordingly in the disksort disk-scheduling code. That would allow us to address not only the bgfsck but also things like silly-seek-syndrome and other sub-optimal issues in our current I/O system. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message