== sanity test 101b: check stride-io mode read-ahead =========================================================================== 03:05:39 (1788764739)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.881378s, 4.45876MB/s
Read-ahead success for size 8192

1.807572s, 4.64082MB/s
Read-ahead success for size 16384

1.739964s, 4.82114MB/s
Read-ahead success for size 32768

2.138829s, 3.92206MB/s
Read-ahead success for size 65536

1.591009s, 5.27251MB/s
Read-ahead success for size 131072

1.713715s, 4.89498MB/s
Read-ahead success for size 262144

1.230848s, 6.81531MB/s
Read-ahead success for size 524288

0.972631s, 8.62466MB/s
Read-ahead success for size 1048576