== sanity test 101b: check stride-io mode read-ahead =========================================================================== 13:09:30 (1750180170)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.920567s, 9.11244MB/s
Read-ahead success for size 8192

0.858896s, 9.76673MB/s
Read-ahead success for size 16384

0.940565s, 8.91869MB/s
Read-ahead success for size 32768

0.793685s, 10.5692MB/s
Read-ahead success for size 65536

0.678361s, 12.366MB/s
Read-ahead success for size 131072

0.544875s, 15.3955MB/s
Read-ahead success for size 262144

0.661467s, 12.6818MB/s
Read-ahead success for size 524288

0.689454s, 12.167MB/s
Read-ahead success for size 1048576