== sanity test 248c: verify whole file read behavior ===== 12:19:22 (1779207562)
llite.lustre-ffff95d47349d800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff95d47349d800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.78246 seconds
llite.lustre-ffff95d47349d800.read_ahead_stats=
snapshot_time             1779207571.940087177 secs.nsecs
start_time                1779207564.393053010 secs.nsecs
elapsed_time              7.547034167 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-ffff95d47349d800.read_ahead_stats=clear
llite.lustre-ffff95d47349d800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.02462 seconds
llite.lustre-ffff95d47349d800.read_ahead_stats=
snapshot_time             1779207581.275141646 secs.nsecs
start_time                1779207571.962990386 secs.nsecs
elapsed_time              9.312151260 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-ffff95d47349d800.max_read_ahead_whole_mb=4