== sanity test 101b: check stride-io mode read-ahead =========================================================================== 01:47:46 (1724305666)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

10.997301s, 0.762788MB/s
Read-ahead success for size 8192

10.160568s, 0.825604MB/s
Read-ahead success for size 16384

10.047804s, 0.83487MB/s
Read-ahead success for size 32768

9.127152s, 0.919083MB/s
Read-ahead success for size 65536

8.339849s, 1.00585MB/s
Read-ahead success for size 131072

8.385059s, 1.00042MB/s
Read-ahead success for size 262144

9.025522s, 0.929432MB/s
Read-ahead success for size 524288

8.496789s, 0.987268MB/s
Read-ahead success for size 1048576