== sanity test 101b: check stride-io mode read-ahead =========================================================================== 20:42:40 (1746146560)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

1.006916s, 8.33099MB/s
Read-ahead success for size 8192

1.075842s, 7.79725MB/s
Read-ahead success for size 16384

1.190143s, 7.0484MB/s
Read-ahead success for size 32768

0.844231s, 9.93639MB/s
Read-ahead success for size 65536

0.842251s, 9.95975MB/s
Read-ahead success for size 131072

0.902061s, 9.29938MB/s
Read-ahead success for size 262144

0.673545s, 12.4544MB/s
Read-ahead success for size 524288

0.677391s, 12.3837MB/s
Read-ahead success for size 1048576