== sanity test 101b: check stride-io mode read-ahead =========================================================================== 19:00:01 (1736985601)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.086951s, 96.4751MB/s
Read-ahead success for size 8192

0.075960s, 110.435MB/s
Read-ahead success for size 16384

0.079939s, 104.938MB/s
Read-ahead success for size 32768

0.075698s, 110.817MB/s
Read-ahead success for size 65536

0.081430s, 103.016MB/s
Read-ahead success for size 131072

0.080813s, 103.803MB/s
Read-ahead success for size 262144

0.076375s, 109.834MB/s
Read-ahead success for size 524288

0.089255s, 93.9847MB/s
Read-ahead success for size 1048576