== sanity test 101b: check stride-io mode read-ahead =========================================================================== 21:18:37 (1708827517)
striped dir -i1 -c2 -H all_char /mnt/lustre/d101b.sanity

0.224284s, 37.4017MB/s
Read-ahead success for size 8192

0.202697s, 41.385MB/s
Read-ahead success for size 16384

0.195100s, 42.9965MB/s
Read-ahead success for size 32768

0.187450s, 44.7512MB/s
Read-ahead success for size 65536

0.183600s, 45.6896MB/s
Read-ahead success for size 131072

0.210690s, 39.8149MB/s
Read-ahead success for size 262144

0.232479s, 36.0833MB/s
Read-ahead success for size 524288

0.288786s, 29.0478MB/s
Read-ahead success for size 1048576