== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:48:32 (1776268112)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.414450s, 20.2403MB/s
Read-ahead success for size 8192

0.307067s, 27.3185MB/s
Read-ahead success for size 16384

0.332719s, 25.2123MB/s
Read-ahead success for size 32768

0.289893s, 28.9369MB/s
Read-ahead success for size 65536

0.333740s, 25.1352MB/s
Read-ahead success for size 131072

0.329946s, 25.4242MB/s
Read-ahead success for size 262144

0.237198s, 35.3654MB/s
Read-ahead success for size 524288

0.263018s, 31.8937MB/s
Read-ahead success for size 1048576