cmdprio-bssplit.fio

; Randomly read/write a block device file at queue depth 16.
[global]
filename=/dev/sda
direct=1
write_lat_log=prio-run.log
log_prio=1
rw=randrw
ioengine=libaio
iodepth=16

; Simple cmdprio_bssplit format. All non-zero percentage entries will
; use the same prio class and prio level defined by the cmdprio_class
; and cmdprio options.
[cmdprio]
; 40% of read IOs are 64kB and 60% are 1MB. 100% of writes are 1MB.
; 100% of the 64kB reads are executed with prio class 1 and prio level 0.
; All other IOs are executed without a priority set.
bssplit=64k/40:1024k/60,1024k/100
cmdprio_bssplit=64k/100:1024k/0,1024k/0
cmdprio_class=1
cmdprio=0

; Advanced cmdprio_bssplit format. Each non-zero percentage entry can
; use a different prio class and prio level (appended to each entry).
[cmdprio-adv]
; 40% of read IOs are 64kB and 60% are 1MB. 100% of writes are 1MB.
; 25% of the 64kB reads are executed with prio class 1 and prio level 1,
; 75% of the 64kB reads are executed with prio class 3 and prio level 2.
; All other IOs are executed without a priority set.
stonewall
bssplit=64k/40:1024k/60,1024k/100
cmdprio_bssplit=64k/25/1/1:64k/75/3/2:1024k/0,1024k/0

; Identical to the previous example, but with a default priority defined.
[cmdprio-adv-def]
; 40% of read IOs are 64kB and 60% are 1MB. 100% of writes are 1MB.
; 25% of the 64kB reads are executed with prio class 1 and prio level 1,
; 75% of the 64kB reads are executed with prio class 3 and prio level 2.
; All other IOs are executed with prio class 2 and prio level 7.
stonewall
prioclass=2
prio=7
bssplit=64k/40:1024k/60,1024k/100
cmdprio_bssplit=64k/25/1/1:64k/75/3/2:1024k/0,1024k/0