== sanity test 101b: check stride-io mode read-ahead =========================================================================== 09:48:18 (1787838498)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

1.291858s, 6.49344MB/s
Read-ahead success for size 8192

1.567563s, 5.35137MB/s
Read-ahead success for size 16384

1.407873s, 5.95836MB/s
Read-ahead success for size 32768

1.158937s, 7.23819MB/s
Read-ahead success for size 65536

0.992365s, 8.45315MB/s
Read-ahead success for size 131072

1.492453s, 5.62068MB/s
Read-ahead success for size 262144

1.224561s, 6.8503MB/s
Read-ahead success for size 524288

1.312243s, 6.39257MB/s
Read-ahead success for size 1048576