== sanity test 248c: verify whole file read behavior ===== 16:09:58 (1760126998)
llite.lustre-ffff8aec91c39000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff8aec91c39000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 10.7046 seconds
llite.lustre-ffff8aec91c39000.read_ahead_stats=
snapshot_time             1760127012.313424759 secs.nsecs
start_time                1760127000.950948948 secs.nsecs
elapsed_time              11.362475811 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-ffff8aec91c39000.read_ahead_stats=clear
llite.lustre-ffff8aec91c39000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.25764 seconds
llite.lustre-ffff8aec91c39000.read_ahead_stats=
snapshot_time             1760127022.694480521 secs.nsecs
start_time                1760127012.340111459 secs.nsecs
elapsed_time              10.354369062 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-ffff8aec91c39000.max_read_ahead_whole_mb=4