I ran the below job file and did a write_iolog to a .log file as shown below. [Replay_Trace_Test] rw=randread ioengine=sync bs=4k iodepth=8 numjobs=1 filename=/dev/sda3: runtime=600 write_iolog=/root/Trace_Logs/Write_Log1.log The Write_Log1.log file looks something like this. fio version 2 iolog /dev/sda3 add dev/sda3 open /dev/sda3 read 23366979584 4096 /dev/sda3 read 286808244224 4096 /dev/sda3 read 326671769600 4096 /dev/sda3 read 182096228352 4096 /dev/sda3 read 155711512576 4096 /dev/sda3 read 325488222208 4096 /dev/sda3 read 147413901312 4096 /dev/sda3 read 136963395584 4096 /dev/sda3 read 353723068416 4096 When I try to replay this log using Read_iolog command in FIO , the replay doesnt start and gets stuck at , Replay: (g=0): rw=read, bs=4K-4K/4K-4K/4K-4K, ioengine=sync, iodepth=1 fio-2.1.1 Starting 1 process FIO version-2.1.2 I am just stuck since the console doesn't report any errors in this case.Any pointers that would help , greatly appreciated. Thanks, lakshmi -- 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