== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:48:44 (1749606524)
striped dir -i1 -c2 -H fnv_1a_64 /mnt/lustre/d101b.sanity

0.373190s, 22.4781MB/s
Read-ahead success for size 8192

0.366927s, 22.8618MB/s
Read-ahead success for size 16384

0.382016s, 21.9588MB/s
Read-ahead success for size 32768

0.343673s, 24.4087MB/s
Read-ahead success for size 65536

0.278477s, 30.1232MB/s
Read-ahead success for size 131072

0.264282s, 31.7411MB/s
Read-ahead success for size 262144

0.271299s, 30.9202MB/s
Read-ahead success for size 524288

0.243793s, 34.4087MB/s
Read-ahead success for size 1048576