== sanity test 101b: check stride-io mode read-ahead =========================================================================== 15:09:17 (1730574557)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

10.068843s, 0.833125MB/s
Read-ahead success for size 8192

8.173134s, 1.02636MB/s
Read-ahead success for size 16384

7.352445s, 1.14093MB/s
Read-ahead success for size 32768

7.827847s, 1.07164MB/s
Read-ahead success for size 65536

7.269918s, 1.15388MB/s
Read-ahead success for size 131072

7.949931s, 1.05518MB/s
Read-ahead success for size 262144

8.598261s, 0.975617MB/s
Read-ahead success for size 524288

7.027862s, 1.19362MB/s
Read-ahead success for size 1048576