== sanity test 101b: check stride-io mode read-ahead =========================================================================== 10:43:47 (1729089827)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

5.322985s, 1.57592MB/s
Read-ahead success for size 8192

4.967502s, 1.6887MB/s
Read-ahead success for size 16384

4.894980s, 1.71372MB/s
Read-ahead success for size 32768

4.225469s, 1.98525MB/s
Read-ahead success for size 65536

3.806970s, 2.20349MB/s
Read-ahead success for size 131072

4.171771s, 2.0108MB/s
Read-ahead success for size 262144

3.448768s, 2.43235MB/s
Read-ahead success for size 524288

4.174188s, 2.00964MB/s
Read-ahead success for size 1048576