== sanity test 248c: verify whole file read behavior ===== 07:25:08 (1756812308)
llite.lustre-ffff91aa98148000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff91aa98148000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.00045 seconds
llite.lustre-ffff91aa98148000.read_ahead_stats=
snapshot_time             1756812314.235916733 secs.nsecs
start_time                1756812309.010085719 secs.nsecs
elapsed_time              5.225831014 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-ffff91aa98148000.read_ahead_stats=clear
llite.lustre-ffff91aa98148000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.82655 seconds
llite.lustre-ffff91aa98148000.read_ahead_stats=
snapshot_time             1756812320.026669831 secs.nsecs
start_time                1756812314.243388042 secs.nsecs
elapsed_time              5.783281789 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-ffff91aa98148000.max_read_ahead_whole_mb=4