== sanity test 101b: check stride-io mode read-ahead =========================================================================== 16:24:30 (1717014270)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

11.726231s, 0.715371MB/s
Read-ahead success for size 8192

10.881046s, 0.770938MB/s
Read-ahead success for size 16384

10.048179s, 0.834839MB/s
Read-ahead success for size 32768

11.092737s, 0.756225MB/s
Read-ahead success for size 65536

10.833106s, 0.774349MB/s
Read-ahead success for size 131072

9.952674s, 0.84285MB/s
Read-ahead success for size 262144

10.165461s, 0.825207MB/s
Read-ahead success for size 524288

9.150922s, 0.916695MB/s
Read-ahead success for size 1048576