== sanity test 248c: verify whole file read behavior ===== 18:17:40 (1788646660)
llite.lustre-ffff981690a4b800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff981690a4b800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.28541 seconds
llite.lustre-ffff981690a4b800.read_ahead_stats=
snapshot_time                       1788646668.039488522 secs.nsecs
start_time                          1788646661.988259696 secs.nsecs
elapsed_time                        6.051228826 secs.nsecs
hits                                16382 samples [pages]
misses                              2 samples [pages]
zero_size_window                    1 samples [pages]
failed_to_fast_read                 3 samples [pages]
readahead_pages                     1 samples [pages] 16382 16382 16382
llite.lustre-ffff981690a4b800.read_ahead_stats=clear
llite.lustre-ffff981690a4b800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.04297 seconds
llite.lustre-ffff981690a4b800.read_ahead_stats=
snapshot_time                       1788646675.654590214 secs.nsecs
start_time                          1788646668.051696193 secs.nsecs
elapsed_time                        7.602894021 secs.nsecs
hits                                16382 samples [pages]
misses                              2 samples [pages]
zero_size_window                    1 samples [pages]
failed_to_fast_read                 3 samples [pages]
readahead_pages                     1 samples [pages] 16382 16382 16382
Test passed on attempt 0
llite.lustre-ffff981690a4b800.max_read_ahead_whole_mb=4