== sanity test 101b: check stride-io mode read-ahead =========================================================================== 16:33:30 (1746131610)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.785254s, 10.6827MB/s
Read-ahead success for size 8192

0.717144s, 11.6972MB/s
Read-ahead success for size 16384

0.813566s, 10.3109MB/s
Read-ahead success for size 32768

0.733255s, 11.4402MB/s
Read-ahead success for size 65536

0.629411s, 13.3277MB/s
Read-ahead success for size 131072

0.481312s, 17.4286MB/s
Read-ahead success for size 262144

0.392816s, 21.3551MB/s
Read-ahead success for size 524288

0.495351s, 16.9347MB/s
Read-ahead success for size 1048576