Hi All, Somewhere between fio-2.11 and fio-2.11-14-gf031 the bw and iops logs no longer get written. # fio --name=test_job --ioengine=libaio --direct=1 --rw=write --iodepth=32 --size=100% --numjobs=1 --bs=1m --filename=/dev/nvme0n1 --group_reporting --write_bw_log=test_job --write_iops_log=test_job --write_lat_log=test_job --log_avg_msec=1000 --disable_lat=0 --disable_clat=0 --disable_slat=0 --runtime=10s --ramp_time=5s --output=test_job # ls -l -rw-r--r-- 1 root root 1537 Jun 6 15:01 test_job -rw-r--r-- 1 root root 0 Jun 6 15:01 test_job_bw.1.log -rw-r--r-- 1 root root 199 Jun 6 15:01 test_job_clat.1.log -rw-r--r-- 1 root root 0 Jun 6 15:01 test_job_iops.1.log -rw-r--r-- 1 root root 200 Jun 6 15:01 test_job_lat.1.log -rw-r--r-- 1 root root 254 Jun 6 15:01 test_job_slat.1.log See above file sizes of zero for the bw and iops logs. However, lat/slat/clat are written. Thoughts on which recent commit broke the functionality? Thanks. Regards, Jeff Western Digital Corporation (and its subsidiaries) E-mail Confidentiality Notice & Disclaimer: This e-mail and any files transmitted with it may contain confidential or legally privileged information of WDC and/or its affiliates, and are intended solely for the use of the individual or entity to which they are addressed. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited. If you have received this e-mail in error, please notify the sender immediately and delete the e-mail in its entirety from your system. -- 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