== sanity test 101b: check stride-io mode read-ahead =========================================================================== 12:59:58 (1783443598)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.464660s, 5.72734MB/s
Read-ahead success for size 8192

1.388172s, 6.04292MB/s
Read-ahead success for size 16384

2.023259s, 4.14609MB/s
Read-ahead success for size 32768

1.448518s, 5.79117MB/s
Read-ahead success for size 65536

1.494832s, 5.61174MB/s
Read-ahead success for size 131072

1.282882s, 6.53888MB/s
Read-ahead success for size 262144

1.322151s, 6.34467MB/s
Read-ahead success for size 524288

1.048335s, 8.00184MB/s
Read-ahead success for size 1048576