== sanity test 101b: check stride-io mode read-ahead =========================================================================== 14:55:17 (1775760917)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

1.526582s, 5.49503MB/s
Read-ahead success for size 8192

1.392544s, 6.02394MB/s
Read-ahead success for size 16384

1.869874s, 4.48619MB/s
Read-ahead success for size 32768

1.515425s, 5.53548MB/s
Read-ahead success for size 65536

1.471674s, 5.70004MB/s
Read-ahead success for size 131072

1.554171s, 5.39748MB/s
Read-ahead success for size 262144

1.692969s, 4.95497MB/s
Read-ahead success for size 524288

1.229982s, 6.82011MB/s
Read-ahead success for size 1048576