== sanity test 101b: check stride-io mode read-ahead =========================================================================== 07:35:10 (1741692910)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.387687s, 21.6376MB/s
Read-ahead success for size 8192

0.364380s, 23.0216MB/s
Read-ahead success for size 16384

0.389809s, 21.5198MB/s
Read-ahead success for size 32768

0.365375s, 22.9589MB/s
Read-ahead success for size 65536

0.337156s, 24.8805MB/s
Read-ahead success for size 131072

0.267602s, 31.3473MB/s
Read-ahead success for size 262144

0.247474s, 33.8969MB/s
Read-ahead success for size 524288

0.224271s, 37.4039MB/s
Read-ahead success for size 1048576