On Thu, Mar 12, 2009 at 5:09 PM, Andrew Wilson <andrew.w.wil...@sun.com> wrote: > First off, it is not a bug, it is a feature that is necessary to flush the > zfs ARC. Otherwise you get rather excessive performance. This is done > through a script called fs_flush, though, and it is easy to comment out that > part of the script. The script is found in filebench/scripts > (usr/benchmarks/filebench/scripts/fs_flush on Solaris machines.
rpool is my root partition '/' . I told filebench to only work on testpool by defining the dir=/testpool and filesystem = zfs in my fileio.prof. But filebench unmounts the rpool as well and hence kills itself > > For example, here is the beginning of the fs_flush script: > #!/usr/bin/perl > # > # CDDL HEADER START > # > # The contents of this file are subject to the terms of the > # Common Development and Distribution License (the "License"). > # You may not use this file except in compliance with the License. > # > # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE > # or http://www.opensolaris.org/os/licensing. > # See the License for the specific language governing permissions > # and limitations under the License. > # > # When distributing Covered Code, include this CDDL HEADER in each > # file and include the License file at usr/src/OPENSOLARIS.LICENSE. > # If applicable, add the following below this CDDL HEADER, with the > # fields enclosed by brackets "[]" replaced with your own identifying > # information: Portions Copyright [yyyy] [name of copyright owner] > # > # CDDL HEADER END > # > # > # Copyright 2007 Sun Microsystems, Inc. All rights reserved. > # Use is subject to license terms. > # > # ident "%Z%%M% %I% %E% SMI" > > # > # Put commands in here to flush the file system cache after > # file set creation but prior to steady state > # > # For most file systems, filebench already handles fs cache flushing > # For ZFS, it needs some help, so this script does > # "zpool export <poolname>" then "zpool import <poolname>" > # > > $fs = $ARGV[0]; > $dir = $ARGV[1]; > > # > # if not zfs, inform user and exit. > # > if (($fs =~ m/^zfs$/) != 1) { > print "filesystem type is: $fs, no action required, so exiting\n"; > exit(0); > } > > Just put exit(0); in the script without a conditional, and it will do > nothing. > > All versions will do this on zfs by default. > > I am not sure how to get just the filebench binaries, but I can tell you > that they are installed as part of OpenSolaris. Everything you need to run > filebench, including the appropriate go_filebench binary, lives in > /usr/benchmarks/filebench on the machine that you have installed OpenSolaris > on. > > Drew > > On 03/12/09 11:21 AM, Asif Iqbal wrote: >> >> Where can I get the latest filebench source code from? >> >> The filebench 1.3.4 has a bug. It unmounts the root pool while doing a >> test. I was using fileio.prof and using zfs instead of tmpfs as my >> filesystem. >> >> I see the source can be broswed from here >> >> >> http://src.opensolaris.org/source/xref/onnv/onnv-gate/usr/src/cmd/filebench/ >> >> But how do I get the code? >> >> > > -- Asif Iqbal PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
