== sanity test 101b: check stride-io mode read-ahead =========================================================================== 01:28:12 (1732429692)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

4.586948s, 1.8288MB/s
Read-ahead success for size 8192

4.532113s, 1.85093MB/s
Read-ahead success for size 16384

4.605789s, 1.82132MB/s
Read-ahead success for size 32768

4.664070s, 1.79856MB/s
Read-ahead success for size 65536

4.274418s, 1.96251MB/s
Read-ahead success for size 131072

4.213610s, 1.99084MB/s
Read-ahead success for size 262144

3.841862s, 2.18347MB/s
Read-ahead success for size 524288

3.565255s, 2.35288MB/s
Read-ahead success for size 1048576