== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:18:53 (1708827533)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.226545s, 37.0284MB/s
Read-ahead success for size 8192

0.189646s, 44.233MB/s
Read-ahead success for size 16384

0.201497s, 41.6314MB/s
Read-ahead success for size 32768

0.191813s, 43.7333MB/s
Read-ahead success for size 65536

0.204240s, 41.0723MB/s
Read-ahead success for size 131072

0.206251s, 40.6718MB/s
Read-ahead success for size 262144

0.229971s, 36.4768MB/s
Read-ahead success for size 524288

0.288188s, 29.1081MB/s
Read-ahead success for size 1048576