== sanity test 101b: check stride-io mode read-ahead =========================================================================== 04:56:21 (1788512181)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.567458s, 5.35173MB/s
Read-ahead success for size 8192

1.612568s, 5.20202MB/s
Read-ahead success for size 16384

1.586826s, 5.28641MB/s
Read-ahead success for size 32768

1.833452s, 4.57531MB/s
Read-ahead success for size 65536

1.888357s, 4.44228MB/s
Read-ahead success for size 131072

1.260526s, 6.65485MB/s
Read-ahead success for size 262144

1.507276s, 5.56541MB/s
Read-ahead success for size 524288

1.366722s, 6.13776MB/s
Read-ahead success for size 1048576