== sanity test 248c: verify whole file read behavior ===== 15:02:01 (1779994921)
llite.lustre-ffff97d7900af000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff97d7900af000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.59267 seconds
llite.lustre-ffff97d7900af000.read_ahead_stats=
snapshot_time             1779994931.725066208 secs.nsecs
start_time                1779994924.401906197 secs.nsecs
elapsed_time              7.323160011 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-ffff97d7900af000.read_ahead_stats=clear
llite.lustre-ffff97d7900af000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.57173 seconds
llite.lustre-ffff97d7900af000.read_ahead_stats=
snapshot_time             1779994941.389499682 secs.nsecs
start_time                1779994931.743702751 secs.nsecs
elapsed_time              9.645796931 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-ffff97d7900af000.max_read_ahead_whole_mb=4