Hello, This has to do with environment variable expansion in bash. You need to escape the $, or put the argument into single quotes: filename_format=‘$jobname.$jobnum.$filenum’ Regards, Mark > On Nov 25, 2018, at 01:36, Mohanraj B <bmohanraj91@xxxxxxxxx> wrote: > > > [EXTERNAL EMAIL] > > Hello, > > I am trying to changing filename format, so run the below command to test it > > fio --name=job --size=10m --numjobs=3 > --filename_format=$jobname.$jobnum.$filenum > > job: (g=0): rw=read, bs=(R) 4096B-4096B, (W) 4096B-4096B, (T) > 4096B-4096B, ioengine=psync, iodepth=1 > ... > fio-3.12-17-g0fcbc0 > Starting 3 processes > job: Laying out IO file (1 file / 10MiB) > fio: pid=0, err=21/file:filesetup.c:138, func=unlink, error=Is a directory > job: Laying out IO file (1 file / 10MiB) > fio: pid=0, err=21/file:filesetup.c:138, func=unlink, error=Is a directory > job: Laying out IO file (1 file / 10MiB) > fio: pid=0, err=21/file:filesetup.c:138, func=unlink, error=Is a directory > > Run status group 0 (all jobs): > > Got the above error, how to change the format of a file? > > Then tired set the filename format like below and test works. > fio --name=job --size=10m --numjobs=3 --filename_format=test.$jobnum.$filenum > ... > fio-3.12-17-g0fcbc0 > Starting 3 processes > job: Laying out IO file (1 file / 10MiB) > > job: (groupid=0, jobs=1): err= 0: pid=5117: Sun Nov 25 11:03:27 2018 > read: IOPS=29.1k, BW=114MiB/s (119MB/s)(10.0MiB/88msec) > clat (nsec): min=1092, max=24776k, avg=32878.38, stdev=646198.51 > lat (nsec): min=1153, max=24777k, avg=33010.36, stdev=646198.32 > clat percentiles (nsec): > | 1.00th=[ 1144], 5.00th=[ 1448], 10.00th=[ 1464], > | 20.00th=[ 1512], 30.00th=[ 1608], 40.00th=[ 2064], > | 50.00th=[ 2576], 60.00th=[ 2896], 70.00th=[ 2960], > | 80.00th=[ 3024], 90.00th=[ 3216], 95.00th=[ 3664], > | 99.00th=[ 411648], 99.50th=[ 493568], 99.90th=[12124160], > | 99.95th=[13041664], 99.99th=[24772608] > lat (usec) : 2=38.67%, 4=57.11%, 10=1.45%, 20=0.94%, 50=0.12% > lat (usec) : 100=0.08%, 250=0.08%, 500=1.09%, 750=0.31% > lat (msec) : 20=0.12%, 50=0.04% > cpu : usr=11.49%, sys=4.60%, ctx=43, majf=0, minf=13 > 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 rwts: total=2560,0,0,0 short=0,0,0,0 dropped=0,0,0,0 > latency : target=0, window=0, percentile=100.00%, depth=1 > > Run status group 0 (all jobs): > READ: bw=114MiB/s (119MB/s), 114MiB/s-114MiB/s (119MB/s-119MB/s), > io=10.0MiB (10.5MB), run=88-88msec > > Disk stats (read/write): > sda: ios=31/0, merge=0/0, ticks=44/0, in_queue=48, util=30.14% > > There is only one file has created --> test. . > > 3 process has run, why it not create 3 files?. > > Thanks and Regards, > Mohan
