== sanity test 248c: verify whole file read behavior ===== 09:14:14 (1740492854)
llite.lustre-ffff88012e688000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff88012e688000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 37.6 seconds
llite.lustre-ffff88012e688000.read_ahead_stats=
snapshot_time             1740492857.432653097 secs.nsecs
start_time                1740492855.434025464 secs.nsecs
elapsed_time              1.998627633 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-ffff88012e688000.read_ahead_stats=clear
llite.lustre-ffff88012e688000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 36.2 seconds
llite.lustre-ffff88012e688000.read_ahead_stats=
snapshot_time             1740492859.697540884 secs.nsecs
start_time                1740492857.437905946 secs.nsecs
elapsed_time              2.259634938 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-ffff88012e688000.max_read_ahead_whole_mb=4