== sanity test 101b: check stride-io mode read-ahead =========================================================================== 10:45:12 (1760453112)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.064006s, 131.06MB/s
Read-ahead success for size 8192

0.067041s, 125.127MB/s
Read-ahead success for size 16384

0.058201s, 144.132MB/s
Read-ahead success for size 32768

0.065030s, 128.996MB/s
Read-ahead success for size 65536

0.073205s, 114.591MB/s
Read-ahead success for size 131072

0.063221s, 132.687MB/s
Read-ahead success for size 262144

0.068524s, 122.419MB/s
Read-ahead success for size 524288

0.069703s, 120.348MB/s
Read-ahead success for size 1048576