== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:05:46 (1756811146)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

1.081439s, 7.75689MB/s
Read-ahead success for size 8192

1.070558s, 7.83573MB/s
Read-ahead success for size 16384

1.213750s, 6.91131MB/s
Read-ahead success for size 32768

0.891021s, 9.4146MB/s
Read-ahead success for size 65536

0.823025s, 10.1924MB/s
Read-ahead success for size 131072

0.761008s, 11.023MB/s
Read-ahead success for size 262144

0.650811s, 12.8895MB/s
Read-ahead success for size 524288

0.575000s, 14.5889MB/s
Read-ahead success for size 1048576