== sanity test 101b: check stride-io mode read-ahead =========================================================================== 22:24:06 (1767324246)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

1.041698s, 8.05282MB/s
Read-ahead success for size 8192

1.110272s, 7.55545MB/s
Read-ahead success for size 16384

1.038307s, 8.07912MB/s
Read-ahead success for size 32768

0.981704s, 8.54495MB/s
Read-ahead success for size 65536

0.777710s, 10.7863MB/s
Read-ahead success for size 131072

0.713472s, 11.7574MB/s
Read-ahead success for size 262144

0.755611s, 11.1018MB/s
Read-ahead success for size 524288

0.752299s, 11.1506MB/s
Read-ahead success for size 1048576