On 17 August 2012 16:28, Jens Axboe <axboe@xxxxxxxxx> wrote:
> On 08/16/2012 05:34 AM, Greg Sullivan wrote:
>> fio seems to be creating test files that are twice as large as
>> requested. The following config creates a file that is 209,715,200
>> bytes in size:
>>
>> [read]
>> size=100M
>> rw=read
>>
>> Environment: Windows 7 32-bit, fio 2.0.8
>
> Can you post the output of running that job? Ensure that the read.1.0 is
> deleted before running it.
>
> --
> Jens Axboe
Here is the log:
===BEGIN===
C:\test>dir
Volume in drive C has no label.
Volume Serial Number is 08F2-7A32
Directory of C:\test
17/08/2012 09:23 PM <DIR> .
17/08/2012 09:23 PM <DIR> ..
17/08/2012 09:16 PM 26 test.ini
1 File(s) 26 bytes
2 Dir(s) 130,065,698,816 bytes free
C:\test>fio test.ini
fio: this platform does not support process shared mutexes, forcing use of threa
ds. Use the 'thread' option to get rid of this warning.
read: (g=0): rw=read, bs=4K-4K/4K-4K, ioengine=windowsaio, iodepth=1
fio-2.0.8-18-g525f
Starting 1 process
read: Laying out IO file(s) (1 file(s) / 100MB)
Jobs: 1 (f=1)
read: (groupid=0, jobs=1): err= 0: pid=7568: Fri Aug 17 21:23:34 2012
read : io=102400KB, bw=71309KB/s, iops=17827 , runt= 1436msec
slat (usec): min=11 , max=10187 , avg=20.98, stdev=72.27
clat (usec): min=1 , max=5422 , avg=28.49, stdev=57.96
lat (usec): min=13 , max=11875 , avg=49.47, stdev=110.30
clat percentiles (usec):
| 1.00th=[ 2], 5.00th=[ 4], 10.00th=[ 7], 20.00th=[ 22],
| 30.00th=[ 24], 40.00th=[ 24], 50.00th=[ 25], 60.00th=[ 29],
| 70.00th=[ 30], 80.00th=[ 41], 90.00th=[ 42], 95.00th=[ 42],
| 99.00th=[ 49], 99.50th=[ 112], 99.90th=[ 378], 99.95th=[ 876],
| 99.99th=[ 2576]
bw (KB/s) : min=46816, max=78288, per=87.72%, avg=62552.00, stdev=22254.06
lat (usec) : 2=0.05%, 4=4.83%, 10=6.11%, 20=7.66%, 50=80.36%
lat (usec) : 100=0.41%, 250=0.41%, 500=0.11%, 750=0.01%, 1000=0.02%
lat (msec) : 2=0.02%, 4=0.01%, 10=0.01%
cpu : usr=0.00%, sys=69.69%, ctx=0, majf=0, minf=0
IO depths : 1=100.0%, 2=0.0%, 4=0.0%, 8=0.0%, 16=0.0%, 32=0.0%, >=64=0.0%
submit : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
complete : 0=0.0%, 4=100.0%, 8=0.0%, 16=0.0%, 32=0.0%, 64=0.0%, >=64=0.0%
issued : total=r=25600/w=0/d=0, short=r=0/w=0/d=0
Run status group 0 (all jobs):
READ: io=102400KB, aggrb=71309KB/s, minb=71309KB/s, maxb=71309KB/s, mint=1436
msec, maxt=1436msec
C:\test>dir
Volume in drive C has no label.
Volume Serial Number is 08F2-7A32
Directory of C:\test
17/08/2012 09:23 PM <DIR> .
17/08/2012 09:23 PM <DIR> ..
17/08/2012 09:23 PM 209,715,200 read.1.0
17/08/2012 09:16 PM 26 test.ini
2 File(s) 209,715,226 bytes
2 Dir(s) 129,855,209,472 bytes free
C:\test>
===END===
Regards
Greg.
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