== sanity test 101b: check stride-io mode read-ahead =========================================================================== 10:31:45 (1782225105)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

2.023760s, 4.14506MB/s
Read-ahead success for size 8192

2.018844s, 4.15515MB/s
Read-ahead success for size 16384

2.475475s, 3.38869MB/s
Read-ahead success for size 32768

2.304138s, 3.64067MB/s
Read-ahead success for size 65536

1.837170s, 4.56605MB/s
Read-ahead success for size 131072

1.767368s, 4.74638MB/s
Read-ahead success for size 262144

1.736545s, 4.83063MB/s
Read-ahead success for size 524288

1.523108s, 5.50756MB/s
Read-ahead success for size 1048576