I'm seeing the same thing on Linux and Windows. Can somebody help Son?
-------- Forwarded Message --------
Subject: RE: FIo version 2.1.8 with write_iops_log option doesn't work
as expected
Date: Thu, 13 Apr 2017 10:07:36 +0700
From: Son Chu <son.ct@xxxxxxxxxxxxx>
To: 'Rebecca Cran' <rebecca@xxxxxxxxxxxx>
Hi Rebecca,
So to get more detail, I will list what I did on both Linux and Windows
to let you see what is my issue:
-Linux Ubuntu 16.04:
oVersion
§2.2.10
oCommand
§fio --randrepeat=1 --ioengine=libaio --direct=1 --name=test
--filename=test --bs=4k --iodepth=64 --size=100M --readwrite=randrw
--rwmixread=75 --write_iops_log=randrw
oOutput
§
-Windows Server 2012 R2:
oVersion
§2.1.8
oCommand
§fio.exe --randrepeat=1 --ioengine=windowsaio --direct=1 --name=test
--filename=test --bs=4k --iodepth=64 --size=100M --readwrite=randrw
--rwmixread=75 --write_iops_log=randrw
oOutput
33, 1, 0, 4096
34, 1, 1, 4096
35, 1, 1, 4096
44, 1, 0, 4096
46, 1, 0, 4096
53, 1, 0, 4096
54, 1, 1, 4096
58, 1, 0, 4096
63, 1, 0, 4096
64, 1, 1, 4096
64, 1, 1, 4096
73, 1, 0, 4096
81, 1, 0, 4096
89, 1, 0, 4096
98, 1, 0, 4096
From these result I wonder why the second column from Windows Server is
different from Linux???? It should be the IOPS like 844,289 from Linux
than 1 from Windows.
Can you help me on this please?
Thanks a lot in advance.
Regards,
Son
*From:*Rebecca Cran [mailto:rebecca@xxxxxxxxxxxx]
*Sent:* Wednesday, April 12, 2017 10:53 PM
*To:* Son Chu <son.ct@xxxxxxxxxxxxx>
*Subject:* Re: FIo version 2.1.8 with write_iops_log option doesn't work
as expected
I'm seeing exactly the same on Linux. What commandline are you using there?
Rebecca
On 4/11/2017 10:28 PM, Son Chu wrote:
Hi Rebecca,
I am using FIO version 2.1.8 on Windows Server 2012 R2. When I was
trying to write iops log with option write_iops_log follow this command:
fio --directory=C\:\fio --ioengine=windowsaio --direct=1
--name=randwin --filename=randwin --bs=4k --iodepth=16 --size=4G
--readwrite=randrw --rwmixread=75 --write_bw_log=randwin
--write_iops_log=randwin --write_lat_log=randwin --per_job_logs=0
I got a log file with example content below:
138, 1, 1, 4096
138, 1, 1, 4096
138, 1, 0, 4096
139, 1, 0, 4096
141, 1, 0, 4096
143, 1, 0, 4096
143, 1, 1, 4096
145, 1, 0, 4096
147, 1, 0, 4096
147, 1, 1, 4096
147, 1, 1, 4096
149, 1, 0, 4096
151, 1, 0, 4096
152, 1, 0, 4096
155, 1, 0, 4096
158, 1, 0, 4096
160, 1, 0, 4096
162, 1, 0, 4096
164, 1, 0, 4096
165, 1, 0, 4096
166, 1, 1, 4096
166, 1, 1, 4096
166, 1, 1, 4096
167, 1, 1, 4096
168, 1, 0, 4096
I have wondered why the second colume was 1 (iops) instead of the expected iops per second (milisecond). If I used command with option: log_avg_msec=1000 then I got expected iops value. This is not like Linux.
Can you please help on this?
Sorry if this disturbs you.
Thanks a lot in advance.
Regards,
Son
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