== sanity test 101b: check stride-io mode read-ahead =========================================================================== 12:35:20 (1776184520)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.469066s, 17.8836MB/s
Read-ahead success for size 8192

0.320476s, 26.1755MB/s
Read-ahead success for size 16384

0.341403s, 24.571MB/s
Read-ahead success for size 32768

0.282000s, 29.7468MB/s
Read-ahead success for size 65536

0.313964s, 26.7184MB/s
Read-ahead success for size 131072

0.210297s, 39.8893MB/s
Read-ahead success for size 262144

0.362451s, 23.1441MB/s
Read-ahead success for size 524288

0.505760s, 16.5861MB/s
Read-ahead success for size 1048576