[global] runtime=120 ioscheduler=cfq overwrite=1 loops=10 group_reporting [seq-read] directory=/mnt/b1 bs=4k rw=read ioengine=sync size=1G [seq-write] directory=/mnt/b1 bs=4k rw=write ioengine=sync size=1G [rand-read] directory=/mnt/b1 bs=4k rw=randread ioengine=sync size=1G numjobs=4 [rand-read-aio] directory=/mnt/b1 bs=4k iodepth=32 rw=randread ioengine=libaio direct=1 size=1G numjobs=4