== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:24:20 (1781213060)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

2.330036s, 3.60021MB/s
Read-ahead success for size 8192

2.319399s, 3.61672MB/s
Read-ahead success for size 16384

2.133594s, 3.93168MB/s
Read-ahead success for size 32768

2.252753s, 3.72371MB/s
Read-ahead success for size 65536

2.336095s, 3.59087MB/s
Read-ahead success for size 131072

2.194872s, 3.82191MB/s
Read-ahead success for size 262144

1.961044s, 4.27762MB/s
Read-ahead success for size 524288

2.401361s, 3.49327MB/s
Read-ahead success for size 1048576