== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:33:59 (1737131639)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.059272s, 141.527MB/s
Read-ahead success for size 8192

0.060054s, 139.684MB/s
Read-ahead success for size 16384

0.060078s, 139.629MB/s
Read-ahead success for size 32768

0.050412s, 166.401MB/s
Read-ahead success for size 65536

0.058696s, 142.916MB/s
Read-ahead success for size 131072

0.058582s, 143.194MB/s
Read-ahead success for size 262144

0.061097s, 137.3MB/s
Read-ahead success for size 524288

0.068327s, 122.771MB/s
Read-ahead success for size 1048576