== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:43:27 (1788561807)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.824336s, 4.59817MB/s
Read-ahead success for size 8192

1.867390s, 4.49216MB/s
Read-ahead success for size 16384

2.555366s, 3.28274MB/s
Read-ahead success for size 32768

2.146204s, 3.90858MB/s
Read-ahead success for size 65536

1.571919s, 5.33654MB/s
Read-ahead success for size 131072

1.597149s, 5.25224MB/s
Read-ahead success for size 262144

1.173511s, 7.1483MB/s
Read-ahead success for size 524288

1.213715s, 6.91151MB/s
Read-ahead success for size 1048576