== sanity test 248c: verify whole file read behavior ===== 02:45:18 (1761288318)
llite.lustre-ffff8acf46618800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff8acf46618800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.62124 seconds
llite.lustre-ffff8acf46618800.read_ahead_stats=
snapshot_time             1761288325.507309990 secs.nsecs
start_time                1761288319.395416382 secs.nsecs
elapsed_time              6.111893608 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-ffff8acf46618800.read_ahead_stats=clear
llite.lustre-ffff8acf46618800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.20067 seconds
llite.lustre-ffff8acf46618800.read_ahead_stats=
snapshot_time             1761288331.674162881 secs.nsecs
start_time                1761288325.517072646 secs.nsecs
elapsed_time              6.157090235 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-ffff8acf46618800.max_read_ahead_whole_mb=4