== sanity test 101b: check stride-io mode read-ahead =========================================================================== 19:36:12 (1746142572)
striped dir -i1 -c2 -H crush /mnt/lustre/d101b.sanity

0.850410s, 9.86419MB/s
Read-ahead success for size 8192

0.695806s, 12.056MB/s
Read-ahead success for size 16384

0.845065s, 9.92658MB/s
Read-ahead success for size 32768

0.637304s, 13.1626MB/s
Read-ahead success for size 65536

0.593170s, 14.142MB/s
Read-ahead success for size 131072

0.603937s, 13.8899MB/s
Read-ahead success for size 262144

0.617045s, 13.5948MB/s
Read-ahead success for size 524288

0.621569s, 13.4959MB/s
Read-ahead success for size 1048576