== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:28:05 (1790954885)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.961731s, 4.27613MB/s
Read-ahead success for size 8192

2.526794s, 3.31986MB/s
Read-ahead success for size 16384

2.600550s, 3.22571MB/s
Read-ahead success for size 32768

1.969283s, 4.25973MB/s
Read-ahead success for size 65536

1.907940s, 4.39668MB/s
Read-ahead success for size 131072

1.860835s, 4.50798MB/s
Read-ahead success for size 262144

1.872821s, 4.47913MB/s
Read-ahead success for size 524288

1.294646s, 6.47946MB/s
Read-ahead success for size 1048576