== sanity test 101b: check stride-io mode read-ahead =========================================================================== 05:09:53 (1726304993)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

5.353198s, 1.56703MB/s
Read-ahead success for size 8192

4.564681s, 1.83772MB/s
Read-ahead success for size 16384

4.145567s, 2.02351MB/s
Read-ahead success for size 32768

4.022329s, 2.08551MB/s
Read-ahead success for size 65536

4.269982s, 1.96455MB/s
Read-ahead success for size 131072

4.101758s, 2.04513MB/s
Read-ahead success for size 262144

4.217806s, 1.98886MB/s
Read-ahead success for size 524288

3.869821s, 2.1677MB/s
Read-ahead success for size 1048576