== sanity test 101b: check stride-io mode read-ahead =========================================================================== 13:59:55 (1776189595)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.362562s, 23.137MB/s
Read-ahead success for size 8192

0.322496s, 26.0115MB/s
Read-ahead success for size 16384

0.296826s, 28.261MB/s
Read-ahead success for size 32768

0.367620s, 22.8187MB/s
Read-ahead success for size 65536

0.290640s, 28.8625MB/s
Read-ahead success for size 131072

0.310198s, 27.0428MB/s
Read-ahead success for size 262144

0.392626s, 21.3654MB/s
Read-ahead success for size 524288

0.230412s, 36.407MB/s
Read-ahead success for size 1048576