== sanity test 101b: check stride-io mode read-ahead =========================================================================== 18:31:12 (1712010672)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

11.585802s, 0.724042MB/s
Read-ahead success for size 8192

9.869853s, 0.849922MB/s
Read-ahead success for size 16384

10.422260s, 0.804874MB/s
Read-ahead success for size 32768

9.979756s, 0.840562MB/s
Read-ahead success for size 65536

9.977135s, 0.840783MB/s
Read-ahead success for size 131072

9.758863s, 0.859589MB/s
Read-ahead success for size 262144

9.112235s, 0.920587MB/s
Read-ahead success for size 524288

7.760397s, 1.08095MB/s
Read-ahead success for size 1048576