== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:52:49 (1773103969)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.722278s, 11.6141MB/s
Read-ahead success for size 8192

0.776386s, 10.8047MB/s
Read-ahead success for size 16384

0.862862s, 9.72184MB/s
Read-ahead success for size 32768

0.779937s, 10.7555MB/s
Read-ahead success for size 65536

0.661194s, 12.6871MB/s
Read-ahead success for size 131072

0.636072s, 13.1881MB/s
Read-ahead success for size 262144

0.601847s, 13.9381MB/s
Read-ahead success for size 524288

0.626139s, 13.3974MB/s
Read-ahead success for size 1048576