== sanity test 101b: check stride-io mode read-ahead =========================================================================== 23:55:07 (1721879707)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

7.452372s, 1.12563MB/s
Read-ahead success for size 8192

4.769917s, 1.75865MB/s
Read-ahead success for size 16384

4.070316s, 2.06092MB/s
Read-ahead success for size 32768

3.975204s, 2.11023MB/s
Read-ahead success for size 65536

5.406451s, 1.55159MB/s
Read-ahead success for size 131072

5.411783s, 1.55006MB/s
Read-ahead success for size 262144

3.478756s, 2.41138MB/s
Read-ahead success for size 524288

5.270555s, 1.5916MB/s
Read-ahead success for size 1048576