== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:32:39 (1746138759)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.730263s, 11.4871MB/s
Read-ahead success for size 8192

0.772665s, 10.8567MB/s
Read-ahead success for size 16384

0.823593s, 10.1854MB/s
Read-ahead success for size 32768

0.734591s, 11.4194MB/s
Read-ahead success for size 65536

0.615309s, 13.6332MB/s
Read-ahead success for size 131072

0.536616s, 15.6324MB/s
Read-ahead success for size 262144

0.534080s, 15.7067MB/s
Read-ahead success for size 524288

0.455190s, 18.4288MB/s
Read-ahead success for size 1048576