On 08/17/2012 01:24 PM, Greg Sullivan wrote: > 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 > Huh, that's all very odd. Bruce, can you reproduce this? -- Jens Axboe -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
