== sanity test 101b: check stride-io mode read-ahead =========================================================================== 15:46:53 (1787773613)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.101647s, 7.61461MB/s
Read-ahead success for size 8192

1.438326s, 5.8322MB/s
Read-ahead success for size 16384

1.765950s, 4.7502MB/s
Read-ahead success for size 32768

1.980723s, 4.23512MB/s
Read-ahead success for size 65536

1.813514s, 4.62561MB/s
Read-ahead success for size 131072

1.529009s, 5.4863MB/s
Read-ahead success for size 262144

1.080785s, 7.76159MB/s
Read-ahead success for size 524288

1.100019s, 7.62588MB/s
Read-ahead success for size 1048576