== sanity test 101b: check stride-io mode read-ahead =========================================================================== 01:42:06 (1786167726)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.555195s, 3.28296MB/s
Read-ahead success for size 8192

2.612905s, 3.21045MB/s
Read-ahead success for size 16384

2.059667s, 4.0728MB/s
Read-ahead success for size 32768

2.082575s, 4.028MB/s
Read-ahead success for size 65536

1.980639s, 4.2353MB/s
Read-ahead success for size 131072

1.522771s, 5.50878MB/s
Read-ahead success for size 262144

0.881501s, 9.51628MB/s
Read-ahead success for size 524288

0.845066s, 9.92657MB/s
Read-ahead success for size 1048576