[fio.git] / examples / butterfly.fio

# Perform a butterfly/funnel seek pattern. This won't always alternate ends on
# every I/O but it will get close.

[global]
filename=/tmp/testfile
bs=4k
direct=1

[forward]
rw=read
flow=2
# Uncomment the size= and offset= lines to prevent each direction going past
# the middle of the file
#size=50%

[backward]
rw=read:-8k
flow=-2
#offset=50%
Commit	Line	Data
8019f14b SW	1	# Perform a butterfly/funnel seek pattern. This won't always alternate ends on
	2	# every I/O but it will get close.
	3
	4	[global]
	5	filename=/tmp/testfile
	6	bs=4k
	7	direct=1
	8
	9	[forward]
	10	rw=read
	11	flow=2
	12	# Uncomment the size= and offset= lines to prevent each direction going past
	13	# the middle of the file
	14	#size=50%
	15
	16	[backward]
	17	rw=read:-8k
	18	flow=-2
	19	#offset=50%