== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:34:25 (1786829665)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.989592s, 4.21625MB/s
Read-ahead success for size 8192

1.845604s, 4.54518MB/s
Read-ahead success for size 16384

1.843385s, 4.55065MB/s
Read-ahead success for size 32768

1.899856s, 4.41539MB/s
Read-ahead success for size 65536

1.585701s, 5.29016MB/s
Read-ahead success for size 131072

1.185715s, 7.07473MB/s
Read-ahead success for size 262144

1.157810s, 7.24524MB/s
Read-ahead success for size 524288

1.187591s, 7.06355MB/s
Read-ahead success for size 1048576