== sanity test 101b: check stride-io mode read-ahead =========================================================================== 11:54:44 (1787846084)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

1.909527s, 4.39303MB/s
Read-ahead success for size 8192

2.176543s, 3.8541MB/s
Read-ahead success for size 16384

2.614840s, 3.20808MB/s
Read-ahead success for size 32768

1.347235s, 6.22654MB/s
Read-ahead success for size 65536

1.667956s, 5.02927MB/s
Read-ahead success for size 131072

1.374302s, 6.1039MB/s
Read-ahead success for size 262144

1.426252s, 5.88157MB/s
Read-ahead success for size 524288

0.903197s, 9.28768MB/s
Read-ahead success for size 1048576