== sanity test 101b: check stride-io mode read-ahead =========================================================================== 06:05:42 (1762167942)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.554287s, 15.1341MB/s
Read-ahead success for size 8192

0.565925s, 14.8228MB/s
Read-ahead success for size 16384

0.590920s, 14.1958MB/s
Read-ahead success for size 32768

0.595063s, 14.097MB/s
Read-ahead success for size 65536

0.487979s, 17.1905MB/s
Read-ahead success for size 131072

0.482497s, 17.3858MB/s
Read-ahead success for size 262144

0.474712s, 17.6709MB/s
Read-ahead success for size 524288

0.488232s, 17.1816MB/s
Read-ahead success for size 1048576