== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:36:28 (1775219788)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

1.808101s, 4.63946MB/s
Read-ahead success for size 8192

1.961208s, 4.27727MB/s
Read-ahead success for size 16384

2.280153s, 3.67897MB/s
Read-ahead success for size 32768

2.210604s, 3.79471MB/s
Read-ahead success for size 65536

1.687682s, 4.97049MB/s
Read-ahead success for size 131072

1.645260s, 5.09865MB/s
Read-ahead success for size 262144

1.467717s, 5.71541MB/s
Read-ahead success for size 524288

1.384860s, 6.05737MB/s
Read-ahead success for size 1048576