== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:15:24 (1763345724)
striped dir -i1 -c2 -H crush2 /mnt/lustre/d101b.sanity

1.339275s, 6.26354MB/s
Read-ahead success for size 8192

1.123026s, 7.46965MB/s
Read-ahead success for size 16384

1.379747s, 6.07982MB/s
Read-ahead success for size 32768

1.523614s, 5.50573MB/s
Read-ahead success for size 65536

1.154346s, 7.26698MB/s
Read-ahead success for size 131072

1.025255s, 8.18197MB/s
Read-ahead success for size 262144

0.915225s, 9.16562MB/s
Read-ahead success for size 524288

0.929214s, 9.02764MB/s
Read-ahead success for size 1048576