# 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%