== sanity test 101b: check stride-io mode read-ahead =========================================================================== 06:19:39 (1789381179)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.821582s, 4.60512MB/s
Read-ahead success for size 8192

2.341509s, 3.58256MB/s
Read-ahead success for size 16384

2.545021s, 3.29609MB/s
Read-ahead success for size 32768

2.527158s, 3.31938MB/s
Read-ahead success for size 65536

1.323886s, 6.33635MB/s
Read-ahead success for size 131072

1.867282s, 4.49242MB/s
Read-ahead success for size 262144

2.012526s, 4.1682MB/s
Read-ahead success for size 524288

1.899282s, 4.41673MB/s
Read-ahead success for size 1048576