== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:11:09 (1718399469)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.136070s, 61.6492MB/s
Read-ahead success for size 8192

0.112159s, 74.7921MB/s
Read-ahead success for size 16384

0.118359s, 70.8743MB/s
Read-ahead success for size 32768

0.150514s, 55.7331MB/s
Read-ahead success for size 65536

0.097585s, 85.9621MB/s
Read-ahead success for size 131072

0.126039s, 66.5557MB/s
Read-ahead success for size 262144

0.122954s, 68.2256MB/s
Read-ahead success for size 524288

0.103039s, 81.412MB/s
Read-ahead success for size 1048576