Hello there, I would like to simulate the following workload - 2 process total that is contenting for read / write IO on the same disk: 1 process is doing a sequential writes 1 process is down random reads This is my FIO job file: ## job file start ## [global] filename=${mydisk} size=5G iodepth=${myiodepth} bs=${myblocksize} ioengine=libaio ramp_time=10s norandommap=1 randrepeat=0 refill_buffers group_reporting=1 direct=1 end_fsync=0 invalidate=1 nice=0 prio=0 prioclass=1 [process_1_seq_write] rw=write write_bw_log=process_1_seq_write.${mydisksub} [process_2_rand_read] rw=randread write_bw_log=process_2_rand_read.${mydiskzub} ## job file end ## I have ran it and it looks right but just want to check with someone else to valid that it is correct. Brian L. -- 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