== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:38:51 (1736991531)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.055708s, 150.582MB/s
Read-ahead success for size 8192

0.054826s, 153.004MB/s
Read-ahead success for size 16384

0.062589s, 134.027MB/s
Read-ahead success for size 32768

0.058491s, 143.417MB/s
Read-ahead success for size 65536

0.055047s, 152.39MB/s
Read-ahead success for size 131072

0.069189s, 121.242MB/s
Read-ahead success for size 262144

0.065365s, 128.335MB/s
Read-ahead success for size 524288

0.088876s, 94.3855MB/s
Read-ahead success for size 1048576