== sanity test 248c: verify whole file read behavior ===== 04:01:09 (1752480069)
llite.lustre-ffff94f4c3b46800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff94f4c3b46800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.28283 seconds
llite.lustre-ffff94f4c3b46800.read_ahead_stats=
snapshot_time             1752480077.959822661 secs.nsecs
start_time                1752480071.181785067 secs.nsecs
elapsed_time              6.778037594 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-ffff94f4c3b46800.read_ahead_stats=clear
llite.lustre-ffff94f4c3b46800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.32591 seconds
llite.lustre-ffff94f4c3b46800.read_ahead_stats=
snapshot_time             1752480086.418805454 secs.nsecs
start_time                1752480077.974183407 secs.nsecs
elapsed_time              8.444622047 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-ffff94f4c3b46800.max_read_ahead_whole_mb=4