== sanity test 101b: check stride-io mode read-ahead =========================================================================== 08:57:07 (1787144227)
striped dir -i1 -c2 -H all_char  /mnt/lustre/d101b.sanity

2.270169s, 3.69515MB/s
Read-ahead success for size 8192

1.512163s, 5.54742MB/s
Read-ahead success for size 16384

2.509760s, 3.34239MB/s
Read-ahead success for size 32768

3.099627s, 2.70633MB/s
Read-ahead success for size 65536

2.831170s, 2.96295MB/s
Read-ahead success for size 131072

1.892976s, 4.43144MB/s
Read-ahead success for size 262144

1.804672s, 4.64827MB/s
Read-ahead success for size 524288

1.520472s, 5.51711MB/s
Read-ahead success for size 1048576