== sanity test 101b: check stride-io mode read-ahead =========================================================================== 09:40:50 (1790948450)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.563220s, 5.36624MB/s
Read-ahead success for size 8192

1.649974s, 5.08408MB/s
Read-ahead success for size 16384

2.214957s, 3.78726MB/s
Read-ahead success for size 32768

1.761560s, 4.76203MB/s
Read-ahead success for size 65536

1.695096s, 4.94875MB/s
Read-ahead success for size 131072

1.418509s, 5.91368MB/s
Read-ahead success for size 262144

1.370486s, 6.1209MB/s
Read-ahead success for size 524288

1.234537s, 6.79494MB/s
Read-ahead success for size 1048576