== sanity test 248c: verify whole file read behavior ===== 20:07:13 (1746144433)
llite.lustre-ffff8800888d7800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800888d7800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 15.0 seconds
llite.lustre-ffff8800888d7800.read_ahead_stats=
snapshot_time             1746144439.185395177 secs.nsecs
start_time                1746144434.336351977 secs.nsecs
elapsed_time              4.849043200 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-ffff8800888d7800.read_ahead_stats=clear
llite.lustre-ffff8800888d7800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 13.6 seconds
llite.lustre-ffff8800888d7800.read_ahead_stats=
snapshot_time             1746144444.967247995 secs.nsecs
start_time                1746144439.194809758 secs.nsecs
elapsed_time              5.772438237 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-ffff8800888d7800.max_read_ahead_whole_mb=4