== sanity test 248c: verify whole file read behavior ===== 03:11:57 (1788592317)
llite.lustre-ffff91f40aaec000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff91f40aaec000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.32144 seconds
llite.lustre-ffff91f40aaec000.read_ahead_stats=
snapshot_time                       1788592326.038635520 secs.nsecs
start_time                          1788592318.995150358 secs.nsecs
elapsed_time                        7.043485162 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-ffff91f40aaec000.read_ahead_stats=clear
llite.lustre-ffff91f40aaec000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.26133 seconds
llite.lustre-ffff91f40aaec000.read_ahead_stats=
snapshot_time                       1788592334.267427552 secs.nsecs
start_time                          1788592326.058050978 secs.nsecs
elapsed_time                        8.209376574 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-ffff91f40aaec000.max_read_ahead_whole_mb=4