| # 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% |