== sanity test 101b: check stride-io mode read-ahead =========================================================================== 10:56:19 (1787496979)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

2.005806s, 4.18216MB/s
Read-ahead success for size 8192

2.075664s, 4.04141MB/s
Read-ahead success for size 16384

2.341237s, 3.58298MB/s
Read-ahead success for size 32768

2.010771s, 4.17184MB/s
Read-ahead success for size 65536

1.473387s, 5.69342MB/s
Read-ahead success for size 131072

1.668750s, 5.02688MB/s
Read-ahead success for size 262144

1.493592s, 5.6164MB/s
Read-ahead success for size 524288

1.583480s, 5.29758MB/s
Read-ahead success for size 1048576