== sanity test 101b: check stride-io mode read-ahead =========================================================================== 22:00:31 (1775872831)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.738047s, 4.82646MB/s
Read-ahead success for size 8192

1.859496s, 4.51123MB/s
Read-ahead success for size 16384

2.203178s, 3.8075MB/s
Read-ahead success for size 32768

2.100264s, 3.99407MB/s
Read-ahead success for size 65536

1.386822s, 6.0488MB/s
Read-ahead success for size 131072

1.174952s, 7.13953MB/s
Read-ahead success for size 262144

0.927458s, 9.04473MB/s
Read-ahead success for size 524288

1.132513s, 7.40707MB/s
Read-ahead success for size 1048576