== sanity test 248c: verify whole file read behavior ===== 20:44:09 (1763084649)
llite.lustre-ffffa0e991049800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffffa0e991049800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.41693 seconds
llite.lustre-ffffa0e991049800.read_ahead_stats=
snapshot_time             1763084654.957876685 secs.nsecs
start_time                1763084650.278214330 secs.nsecs
elapsed_time              4.679662355 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-ffffa0e991049800.read_ahead_stats=clear
llite.lustre-ffffa0e991049800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.53416 seconds
llite.lustre-ffffa0e991049800.read_ahead_stats=
snapshot_time             1763084660.235471190 secs.nsecs
start_time                1763084654.963337441 secs.nsecs
elapsed_time              5.272133749 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-ffffa0e991049800.max_read_ahead_whole_mb=4