== sanity test 101b: check stride-io mode read-ahead =========================================================================== 09:45:15 (1761313515)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.254400s, 32.9741MB/s
Read-ahead success for size 8192

0.180333s, 46.5173MB/s
Read-ahead success for size 16384

0.180007s, 46.6016MB/s
Read-ahead success for size 32768

0.234405s, 35.7868MB/s
Read-ahead success for size 65536

0.188622s, 44.4731MB/s
Read-ahead success for size 131072

0.183128s, 45.8073MB/s
Read-ahead success for size 262144

0.219100s, 38.2867MB/s
Read-ahead success for size 524288

0.176438s, 47.5442MB/s
Read-ahead success for size 1048576