== sanity test 101b: check stride-io mode read-ahead =========================================================================== 05:36:53 (1789119413)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.501880s, 5.5854MB/s
Read-ahead success for size 8192

1.270620s, 6.60198MB/s
Read-ahead success for size 16384

1.601180s, 5.23902MB/s
Read-ahead success for size 32768

1.500689s, 5.58984MB/s
Read-ahead success for size 65536

1.397715s, 6.00166MB/s
Read-ahead success for size 131072

1.333413s, 6.29108MB/s
Read-ahead success for size 262144

1.112119s, 7.54291MB/s
Read-ahead success for size 524288

0.945495s, 8.87219MB/s
Read-ahead success for size 1048576