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From: Robert Balogh <ethrbh@gmail.com>
To: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Cc: fio <fio@vger.kernel.org>
Subject: Re: FIO performance measurement between volumes
Date: Fri, 14 Jan 2022 08:47:53 +0100	[thread overview]
Message-ID: <CAA4OwwVU9Pg595xu99E621f-LspUcDd=sg2zOqZ_jyTTfPQaaw@mail.gmail.com> (raw)
In-Reply-To: <17570043-aa80-3ed1-3fd0-23eb235f0d0b@opensource.wdc.com>

hello Damien,

Thanks for your quick reply. I am afraid I made a mistake to not
describe clearly what my goal is. So I can perform the FIO test for
the 2nd attached volume similar to what is done for the 1st volume.
But now I would like to do a performance measurement between the
volumes.

So my idea is, there is a e.g: 10G size file stored in volume1, and
this file is going to write to volume2, then read back. But now, I am
not sure this can be done with the FIO tool.

Thanks for your help.
/Robi

On Fri, Jan 14, 2022 at 12:20 AM Damien Le Moal
<damien.lemoal@opensource.wdc.com> wrote:
>
> On 1/13/22 20:47, Robert Balogh wrote:
> > hello FIO experts,
> >
> > I am a beginner in FIO, and I met with a problem.
> >
> > Currently in my Ubuntu based server the "/dev/vdb1" volume is attached
> > to the "/home/batman/fio/cindervolume" path. FIO job is configured
> > like this
> >
> >     [global]
> >     filename=fio-172_20_2_13
> >     directory=/home/batman/fio/cindervolume rw=rw
> >     rwmixread=60
> >     rwmixwrite=40
> >     bs=4k
> >     rate=500k
> >     direct=1
> >     numjobs=1
> >     time_based=1
> >     runtime=14d
> >     verify=crc32c
> >     continue_on_error=all
> >     group_reporting=1
> >
> >     [file1]
> >     iodepth=1
> >     ; -- end job file --
> >
> > FIO is started like this and works well:
> >     /usr/bin/fio --size=10G
> > --output=/home/batman/fio/cindervolume/fio-172_20_2_13-process.log
> > /home/batman/fioApp/fio-seq-RW.job &
> >
> > FIO version I use: fio-3.25
> >
> > My next step would be to attach a 2nd volume for example "/dev/vdc" to
> > "/home/batman/fio/cindervolume-2" path, and I would do performance
> > measurement between the volumes. I was checking the FIO user’s guide,
> > https://fio.readthedocs.io/en/latest/fio_doc.html but unfortunately I
> > cannot figure out which parameter might help me to solve this topic.
> >
> > By-the-way is this possible to do with FIO? If so, could you please
> > help me by giving some direction/hints?
>
> Move the directory=/... option from global section into the job section
> and add a job for your other volume with directory= again added in that
> job section to point to the new volume directory. The 2 jobs will run
> simultaneously targetting different volumes, unless you add "stonewall",
> in which case the jobs will run one after the other.
>
> Or you could just write another fio script for the second volume.
>
> It is not clear if you want to run the perf tests on the 2 volumes in
> parallel or one after the other.
>
> >
> > thanks for your help,
> >
> > /Robi
>
>
> --
> Damien Le Moal
> Western Digital Research

  reply	other threads:[~2022-01-14  7:48 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-13 11:47 FIO performance measurement between volumes Robert Balogh
2022-01-13 23:20 ` Damien Le Moal
2022-01-14  7:47   ` Robert Balogh [this message]
     [not found]     ` <CAM5EYbmExSVAtEKzYWE+quTQk-5J4iSnnW4+qoMLg0+MF5sbJw@mail.gmail.com>
2022-01-17  7:48       ` Robert Balogh

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