On Thu, Mar 12, 2009 at 7:24 PM, Asif Iqbal <[email protected]> wrote:
> 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
It was a typo. It should be called rpool. I have exact same setup on
another server that I pasted from
by mistake
> 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?
>
--
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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