== sanity test 248c: verify whole file read behavior ===== 14:46:18 (1784227578)
llite.lustre-ffff92d005778800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff92d005778800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.68645 seconds
llite.lustre-ffff92d005778800.read_ahead_stats=
snapshot_time                       1784227582.337161305 secs.nsecs
start_time                          1784227579.474905505 secs.nsecs
elapsed_time                        2.862255800 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-ffff92d005778800.read_ahead_stats=clear
llite.lustre-ffff92d005778800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.73944 seconds
llite.lustre-ffff92d005778800.read_ahead_stats=
snapshot_time                       1784227585.651497470 secs.nsecs
start_time                          1784227582.342043653 secs.nsecs
elapsed_time                        3.309453817 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-ffff92d005778800.max_read_ahead_whole_mb=4