From: Jens Axboe <jens.axboe@oracle.com>
To: Learner Study <learner.study@gmail.com>
Cc: fio@vger.kernel.org
Subject: Re: Ques on FIO output (how to interpret iops)
Date: Sat, 20 Jun 2009 08:27:03 +0200 [thread overview]
Message-ID: <20090620062702.GI31415@kernel.dk> (raw)
In-Reply-To: <7efa8a7d0906191519l5b268430o3ec4c96e60dfcb7a@mail.gmail.com>
On Fri, Jun 19 2009, Learner Study wrote:
> Hi:
>
> How do I calculate total IOPS done by different FIO threads/jobs?
>
> Following is output from FIO (with two threads)...
>
> Each thread shows "bw" and "iops" numbers. Towards the end of output log,
> there is "aggrb" which is sum of individual "bw" of threads, but "io" field
> (3 line from the bottom of output below) doesn't seem to be sum of
> individual thread iops....
>
> For example, Thread_1 has bw: 15k iops: 29366
> Thread_2 has bw: 15k iops: 29445
> But, the summary towards the end (third line from bottom of output), says
> "io=1,723MiB, aggrb=30,105KiB/s".
>
> In this aggrb is good but io doesn't match up (it should be 58781) ! Can
> someone please educate what am I missing?
Can you try a newer version? If the problem is still there, the best way
to get it fixed is to send my a simple job file that reproduces the
problem, and then I can easily fix it for you.
--
Jens Axboe
next prev parent reply other threads:[~2009-06-20 6:27 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-19 22:19 Ques on FIO output (how to interpret iops) Learner Study
2009-06-20 6:27 ` Jens Axboe [this message]
2009-06-20 13:21 ` John Cagle
2009-06-20 14:12 ` Jens Axboe
2009-06-20 20:38 ` Learner Study
2009-06-20 21:17 ` Learner Study
[not found] ` <6863f0c90906202031h54c9f74bwdb09ca084d05ddfa@mail.gmail.com>
2009-06-21 5:15 ` Learner Study
2009-06-21 12:30 ` John Cagle
2009-06-20 15:33 ` Jens Axboe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20090620062702.GI31415@kernel.dk \
--to=jens.axboe@oracle.com \
--cc=fio@vger.kernel.org \
--cc=learner.study@gmail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox