== sanity test 248c: verify whole file read behavior ===== 20:54:23 (1782867263)
llite.lustre-ffff967ac1ab4000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff967ac1ab4000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.55155 seconds
llite.lustre-ffff967ac1ab4000.read_ahead_stats=
snapshot_time                       1782867266.981027250 secs.nsecs
start_time                          1782867264.271313017 secs.nsecs
elapsed_time                        2.709714233 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-ffff967ac1ab4000.read_ahead_stats=clear
llite.lustre-ffff967ac1ab4000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.71552 seconds
llite.lustre-ffff967ac1ab4000.read_ahead_stats=
snapshot_time                       1782867270.204375797 secs.nsecs
start_time                          1782867266.985262379 secs.nsecs
elapsed_time                        3.219113418 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-ffff967ac1ab4000.max_read_ahead_whole_mb=4