== sanity test 248c: verify whole file read behavior ===== 02:15:16 (1769757316)
llite.lustre-ffff919e0582f000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff919e0582f000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 10.2633 seconds
llite.lustre-ffff919e0582f000.read_ahead_stats=
snapshot_time             1769757329.920452770 secs.nsecs
start_time                1769757318.916813163 secs.nsecs
elapsed_time              11.003639607 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-ffff919e0582f000.read_ahead_stats=clear
llite.lustre-ffff919e0582f000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.58622 seconds
llite.lustre-ffff919e0582f000.read_ahead_stats=
snapshot_time             1769757340.825960816 secs.nsecs
start_time                1769757329.946579773 secs.nsecs
elapsed_time              10.879381043 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-ffff919e0582f000.max_read_ahead_whole_mb=4