From owner-freebsd-current Sat Apr 19 14:12:04 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id OAA11367 for current-outgoing; Sat, 19 Apr 1997 14:12:04 -0700 (PDT) Received: from rah.star-gate.com (rah.star-gate.com [204.188.121.18]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id OAA11305 for ; Sat, 19 Apr 1997 14:11:58 -0700 (PDT) Received: from rah.star-gate.com (localhost.star-gate.com [127.0.0.1]) by rah.star-gate.com (8.8.5/8.7.3) with ESMTP id OAA03728; Sat, 19 Apr 1997 14:11:56 -0700 (PDT) Message-Id: <199704192111.OAA03728@rah.star-gate.com> X-Mailer: exmh version 1.6.9 8/22/96 To: Warner Losh cc: current@freebsd.org Subject: Re: Speed deamons: How to build a build box? In-reply-to: Your message of "Sat, 19 Apr 1997 14:52:37 MDT." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Sat, 19 Apr 1997 14:11:56 -0700 From: Amancio Hasty Sender: owner-current@freebsd.org X-Loop: FreeBSD.org Precedence: bulk The disks don't seem to be running that fast. Post the disk geometry and probably someone one the list will be able to help you set it up. I get this with my 5400 quantum disk drive 16 8192 3273603 74051160 The read value is because of caching. You may want to post your disklabel info: setenv EDITOR emacs disklabel -e -r /dev/rsd0 then save the geometry to a file or if you are running X just cut and paste. Cheers, Amancio >From The Desk Of Warner Losh : > In message <199704192025.NAA03263@rah.star-gate.com> Amancio Hasty writes: > : One of the first things that I would is to check the system BIOS and > : make sure that the PCI settings are set for optimal performance. > > They seem to be. > > : Next check the speed of the disks with something like iozone. > > IOZONE tells me: > > JAZ: 1.5MB/s write, 5.2MB/s read > Fireball: 1.4MB/s write, 2.7MB/s read > > Disks are both 4500 rpm. The JAZ is 12ms seek and the Fireball is > 10.5ms seek time. > > These disks could easily be much faster :-) However, async, noatime > mounting seems to be about the best thing I can do for the build. I > have about a half dozen builds done now, and want to do one or two > more. I'll post the summary when I finish. > > Warner