== sanity test 101b: check stride-io mode read-ahead =========================================================================== 14:38:14 (1777574294)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

0.548408s, 15.2963MB/s
Read-ahead success for size 8192

0.520726s, 16.1094MB/s
Read-ahead success for size 16384

0.605347s, 13.8575MB/s
Read-ahead success for size 32768

0.505832s, 16.5838MB/s
Read-ahead success for size 65536

0.549302s, 15.2714MB/s
Read-ahead success for size 131072

0.490424s, 17.1048MB/s
Read-ahead success for size 262144

0.476494s, 17.6049MB/s
Read-ahead success for size 524288

0.484727s, 17.3058MB/s
Read-ahead success for size 1048576