On 06/04/2015 05:09 PM, Reed Crowe wrote: > Using this version of FIO: > * io-threads > master > rcrowe@rcrowe-desktop:~/fio_iothreads/fio$ ./fio --version > fio-2.2.7-14-g00b2 > > I have a job file which looks like this: > > [global] > ioengine=libaio > direct=1 > numjobs=1 > bs=4k > iodepth=300 > rw=randwrite > randrepeat=0 > io_submit_mode=offload > rate_iops=8070 > time_based=1 > runtime=1m > > [slow_write] > filename=/mnt/test1/testfile.io > write_lat_log=/tmp/fio_lat > > And it produces empty files: > -rw-r--r-- 1 root root 0 Jun 4 14:34 fio_lat_clat.1.log > -rw-r--r-- 1 root root 0 Jun 4 14:34 fio_lat_lat.1.log > -rw-r--r-- 1 root root 0 Jun 4 14:34 fio_lat_slat.1.log > > What am I missing? I am seeing this behavior in the latest release fio-2.2.10 and in master fio-2.2.10-29-g8a68 but I am not using offload. Is anyone currently able to successfully generate log output? If so could you share your fio version and your config? Here is the job file I am using at the moment.. have tried variations on these settings and different fio versions back to 2.0.15 but always the same empty output: [write] group_reporting=1 numjobs=8 ioengine=posixaio io_submit_mode=inline stonewall rw=write bs=32k time_based=1 runtime=10 filesize=64k directory=/tmp per_job_logs=1 write_bw_log=write_bw write_iops_log=write_iops Updated the issue reported here: https://github.com/axboe/fio/issues/29 Thank you for any ideas you may have! -- 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