== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:16:48 (1754407008)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.729939s, 11.4922MB/s
Read-ahead success for size 8192

0.688522s, 12.1835MB/s
Read-ahead success for size 16384

0.616524s, 13.6063MB/s
Read-ahead success for size 32768

0.585973s, 14.3157MB/s
Read-ahead success for size 65536

0.554884s, 15.1178MB/s
Read-ahead success for size 131072

0.518001s, 16.1942MB/s
Read-ahead success for size 262144

0.480447s, 17.46MB/s
Read-ahead success for size 524288

0.457615s, 18.3311MB/s
Read-ahead success for size 1048576