== sanity test 101b: check stride-io mode read-ahead =========================================================================== 13:08:12 (1763489292)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.767055s, 10.9361MB/s
Read-ahead success for size 8192

0.699832s, 11.9866MB/s
Read-ahead success for size 16384

0.723419s, 11.5958MB/s
Read-ahead success for size 32768

0.708991s, 11.8318MB/s
Read-ahead success for size 65536

0.602966s, 13.9122MB/s
Read-ahead success for size 131072

0.592471s, 14.1587MB/s
Read-ahead success for size 262144

0.507276s, 16.5366MB/s
Read-ahead success for size 524288

0.529825s, 15.8328MB/s
Read-ahead success for size 1048576