== sanity test 101b: check stride-io mode read-ahead =========================================================================== 05:09:03 (1774429743)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.667988s, 12.558MB/s
Read-ahead success for size 8192

0.714030s, 11.7483MB/s
Read-ahead success for size 16384

0.944318s, 8.88324MB/s
Read-ahead success for size 32768

0.659782s, 12.7142MB/s
Read-ahead success for size 65536

0.796190s, 10.5359MB/s
Read-ahead success for size 131072

0.658190s, 12.745MB/s
Read-ahead success for size 262144

0.547096s, 15.333MB/s
Read-ahead success for size 524288

0.554423s, 15.1303MB/s
Read-ahead success for size 1048576