== sanity test 101b: check stride-io mode read-ahead =========================================================================== 17:09:53 (1718399393)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.163293s, 51.3715MB/s
Read-ahead success for size 8192

0.153029s, 54.8171MB/s
Read-ahead success for size 16384

0.145277s, 57.7422MB/s
Read-ahead success for size 32768

0.143696s, 58.3775MB/s
Read-ahead success for size 65536

0.159228s, 52.683MB/s
Read-ahead success for size 131072

0.148850s, 56.3561MB/s
Read-ahead success for size 262144

0.155801s, 53.8418MB/s
Read-ahead success for size 524288

0.179657s, 46.6924MB/s
Read-ahead success for size 1048576