== sanity test 248c: verify whole file read behavior ===== 07:35:50 (1730810150)
llite.lustre-ffff8800b5ba8800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff8800b5ba8800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 37.7 seconds
llite.lustre-ffff8800b5ba8800.read_ahead_stats=
snapshot_time             1730810153.269099189 secs.nsecs
start_time                1730810151.279011866 secs.nsecs
elapsed_time              1.990087323 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-ffff8800b5ba8800.read_ahead_stats=clear
llite.lustre-ffff8800b5ba8800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 36.2 seconds
llite.lustre-ffff8800b5ba8800.read_ahead_stats=
snapshot_time             1730810155.529836364 secs.nsecs
start_time                1730810153.274668659 secs.nsecs
elapsed_time              2.255167705 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-ffff8800b5ba8800.max_read_ahead_whole_mb=64