== sanity test 101b: check stride-io mode read-ahead =========================================================================== 12:12:57 (1777565577)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

0.534633s, 15.6904MB/s
Read-ahead success for size 8192

0.540705s, 15.5142MB/s
Read-ahead success for size 16384

0.566248s, 14.8144MB/s
Read-ahead success for size 32768

0.585094s, 14.3372MB/s
Read-ahead success for size 65536

0.463368s, 18.1036MB/s
Read-ahead success for size 131072

0.436971s, 19.1972MB/s
Read-ahead success for size 262144

0.402787s, 20.8264MB/s
Read-ahead success for size 524288

0.433429s, 19.3541MB/s
Read-ahead success for size 1048576