== sanity test 101b: check stride-io mode read-ahead =========================================================================== 15:57:48 (1788465468)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

1.557527s, 5.38585MB/s
Read-ahead success for size 8192

1.897686s, 4.42044MB/s
Read-ahead success for size 16384

2.247950s, 3.73167MB/s
Read-ahead success for size 32768

2.742905s, 3.05829MB/s
Read-ahead success for size 65536

1.976472s, 4.24423MB/s
Read-ahead success for size 131072

1.834424s, 4.57288MB/s
Read-ahead success for size 262144

2.016734s, 4.1595MB/s
Read-ahead success for size 524288

1.918055s, 4.3735MB/s
Read-ahead success for size 1048576