[poisson-rate-submit]
size=128m
rw=randread
ioengine=libaio
iodepth=32
direct=1
# by setting the submit mode to offload, we can guarantee a fixed rate of
# submission regardless of what the device completion rate is.
io_submit_mode=offload
rate_iops=50
# Real world random request flow follows Poisson process. To give better
# insight on latency distribution, we simulate request flow under Poisson
# process.
rate_process=poisson