== sanity test 101b: check stride-io mode read-ahead =========================================================================== 23:55:01 (1783137301)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.884827s, 4.4506MB/s
Read-ahead success for size 8192

2.448764s, 3.42565MB/s
Read-ahead success for size 16384

2.662754s, 3.15035MB/s
Read-ahead success for size 32768

2.763901s, 3.03506MB/s
Read-ahead success for size 65536

1.609286s, 5.21263MB/s
Read-ahead success for size 131072

1.771860s, 4.73435MB/s
Read-ahead success for size 262144

1.765088s, 4.75252MB/s
Read-ahead success for size 524288

1.734920s, 4.83516MB/s
Read-ahead success for size 1048576