On Thu, Mar 12, 2009 at 5:09 PM, Andrew Wilson <[email protected]> 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.
>
> 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.
But I like to filebench zfs fs too
See if I have two pools. One rootpool and one testpool. I still want
to do the test on testpool.
pool: rpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
splunk ONLINE 0 0 0
mirror ONLINE 0 0 0
c0t0d0s0 ONLINE 0 0 0
c0t1d0s0 ONLINE 0 0 0
errors: No known data errors
pool: testpool
state: ONLINE
scrub: none requested
config:
NAME STATE READ WRITE CKSUM
testpool ONLINE 0 0 0
raidz2 ONLINE 0 0 0
c0t2d0 ONLINE 0 0 0
c0t3d0 ONLINE 0 0 0
c0t4d0 ONLINE 0 0 0
c0t5d0 ONLINE 0 0 0
c0t6d0 ONLINE 0 0 0
logs ONLINE 0 0 0
c0t7d0 ONLINE 0 0 0
errors: No known data errors
bash-3.00# zfs list
NAME USED AVAIL REFER MOUNTPOINT
rpool 6.91G 60.0G 35.5K /rpool
rpool/ROOT 3.91G 60.0G 18K legacy
rpool/ROOT/rootset 3.91G 60.0G 3.78G /
rpool/ROOT/rootset/var 129M 60.0G 129M /var
rpool/dump 1.00G 60.0G 1.00G -
rpool/export 249K 60.0G 19K /export
rpool/export/home 230K 60.0G 230K /export/home
rpool/swap 2G 62.0G 90K -
testpool 57.8G 142G 57.8G /testpool
# cat fileio.prof
[..]
DEFAULTS {
runtime = 120;
dir = /testpool;
stats = /tmp;
filesystem = zfs;
description = "fileio zfs";
filesize = 10g;
}
[..rest as default..]
see how it is miserably failing
bash-3.00# /opt/filebench/bin/filebench fileio
parsing profile for config: randomread2k
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomread2k/thisrun.f
FileBench Version 1.3.4
666: 0.007: Random Read Version 2.0 IO personality successfully loaded
666: 0.007: Creating/pre-allocating files and filesets
666: 0.007: File largefile1: mbytes=10240
666: 0.007: Creating file largefile1...
666: 0.008: Preallocated 1 of 1 of file largefile1 in 1 seconds
666: 0.008: waiting for fileset pre-allocation to finish
666: 104.412: Running '/opt/filebench/scripts/fs_flush zfs /testpool'
'zpool export rpool'
cannot unmount '/': Device busy
'zpool import rpool'
cannot import 'rpool': no such pool available
666: 105.399: Change dir to
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomread2k
666: 105.399: Starting 1 rand-read instances
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: randomread8k
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomread8k/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbench.La4ub: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: randomread1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomread1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchXMa4vb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: randomwrite2k
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomwrite2k/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchKNa4wb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: randomwrite8k
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomwrite8k/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchxOa4xb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: randomwrite1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/randomwrite1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchkPa4yb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: singlestreamread1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/singlestreamread1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbench9Pa4zb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: singlestreamreaddirect1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/singlestreamreaddirect1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchWQa4Ab: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: singlestreamwrite1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/singlestreamwrite1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchJRa4Bb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: singlestreamwritedirect1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/singlestreamwritedirect1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchwSa4Cb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: multistreamread1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/multistreamread1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchjTa4Db: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: multistreamreaddirect1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/multistreamreaddirect1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbench8Ta4Eb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: multistreamwrite1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/multistreamwrite1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchVUa4Fb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
parsing profile for config: multistreamwritedirect1m
Running
/tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s/multistreamwritedirect1m/thisrun.f
FileBench Version 1.3.4
Cannot open shm /var/tmp/fbenchIVa4Gb: No such file or directory
Generating html for /tmp/splunk-test-zfs-fileio-Mar_13_2009-00h_18m_02s
bash-3.00#
What I don't understand why it is trying to export rpool.
>
> 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?
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