== sanity test 101b: check stride-io mode read-ahead =========================================================================== 04:41:54 (1761122514)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.094520s, 88.7496MB/s
Read-ahead success for size 8192

0.094930s, 88.3662MB/s
Read-ahead success for size 16384

0.115233s, 72.7969MB/s
Read-ahead success for size 32768

0.108599s, 77.2439MB/s
Read-ahead success for size 65536

0.129442s, 64.8059MB/s
Read-ahead success for size 131072

0.130744s, 64.1606MB/s
Read-ahead success for size 262144

0.132606s, 63.2596MB/s
Read-ahead success for size 524288

0.134059s, 62.574MB/s
Read-ahead success for size 1048576