== sanity test 248c: verify whole file read behavior ===== 18:14:03 (1785968043)
llite.lustre-ffff9a6648be1800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9a6648be1800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.4839 seconds
llite.lustre-ffff9a6648be1800.read_ahead_stats=
snapshot_time                       1785968050.886793511 secs.nsecs
start_time                          1785968044.932117216 secs.nsecs
elapsed_time                        5.954676295 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-ffff9a6648be1800.read_ahead_stats=clear
llite.lustre-ffff9a6648be1800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.65014 seconds
llite.lustre-ffff9a6648be1800.read_ahead_stats=
snapshot_time                       1785968058.405864455 secs.nsecs
start_time                          1785968050.898765971 secs.nsecs
elapsed_time                        7.507098484 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-ffff9a6648be1800.max_read_ahead_whole_mb=4