== sanity test 101b: check stride-io mode read-ahead =========================================================================== 04:03:50 (1787385830)
striped dir -i1 -c2 -H fnv_1a_64  /mnt/lustre/d101b.sanity

1.880769s, 4.4602MB/s
Read-ahead success for size 8192

1.751981s, 4.78807MB/s
Read-ahead success for size 16384

2.330870s, 3.59892MB/s
Read-ahead success for size 32768

1.850902s, 4.53217MB/s
Read-ahead success for size 65536

1.633853s, 5.13425MB/s
Read-ahead success for size 131072

1.447361s, 5.7958MB/s
Read-ahead success for size 262144

1.287627s, 6.51478MB/s
Read-ahead success for size 524288

1.206700s, 6.95169MB/s
Read-ahead success for size 1048576