== sanity test 248c: verify whole file read behavior ===== 04:10:26 (1724314226)
llite.lustre-ffff8800aa721800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff8800aa721800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 29.3 seconds
llite.lustre-ffff8800aa721800.read_ahead_stats=
snapshot_time             1724314229.018809903 secs.nsecs
start_time                1724314226.582675264 secs.nsecs
elapsed_time              2.436134639 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-ffff8800aa721800.read_ahead_stats=clear
llite.lustre-ffff8800aa721800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 30.7 seconds
llite.lustre-ffff8800aa721800.read_ahead_stats=
snapshot_time             1724314231.600464482 secs.nsecs
start_time                1724314229.023023833 secs.nsecs
elapsed_time              2.577440649 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-ffff8800aa721800.max_read_ahead_whole_mb=64