== sanity test 248c: verify whole file read behavior ===== 18:28:12 (1777501692)
llite.lustre-ffff9ce882d92000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9ce882d92000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.42467 seconds
llite.lustre-ffff9ce882d92000.read_ahead_stats=
snapshot_time             1777501696.803360311 secs.nsecs
start_time                1777501692.989506185 secs.nsecs
elapsed_time              3.813854126 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-ffff9ce882d92000.read_ahead_stats=clear
llite.lustre-ffff9ce882d92000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.44058 seconds
llite.lustre-ffff9ce882d92000.read_ahead_stats=
snapshot_time             1777501701.246047687 secs.nsecs
start_time                1777501696.814066847 secs.nsecs
elapsed_time              4.431980840 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-ffff9ce882d92000.max_read_ahead_whole_mb=4