== sanity test 101b: check stride-io mode read-ahead =========================================================================== 13:35:53 (1780335353)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.236063s, 3.75151MB/s
Read-ahead success for size 8192

1.966331s, 4.26612MB/s
Read-ahead success for size 16384

2.172871s, 3.86061MB/s
Read-ahead success for size 32768

1.313154s, 6.38814MB/s
Read-ahead success for size 65536

1.447915s, 5.79358MB/s
Read-ahead success for size 131072

1.324887s, 6.33156MB/s
Read-ahead success for size 262144

1.460032s, 5.7455MB/s
Read-ahead success for size 524288

0.819807s, 10.2324MB/s
Read-ahead success for size 1048576