== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:06:47 (1713438407)
striped dir -i1 -c2 -H crush2 /mnt/lustre/d101b.sanity

7.276441s, 1.15284MB/s
Read-ahead success for size 8192

6.675558s, 1.25662MB/s
Read-ahead success for size 16384

6.191342s, 1.35489MB/s
Read-ahead success for size 32768

6.249535s, 1.34228MB/s
Read-ahead success for size 65536

5.603028s, 1.49716MB/s
Read-ahead success for size 131072

4.999563s, 1.67787MB/s
Read-ahead success for size 262144

6.337795s, 1.32358MB/s
Read-ahead success for size 524288

5.511810s, 1.52193MB/s
Read-ahead success for size 1048576