== sanity test 248c: verify whole file read behavior ===== 08:51:01 (1787748661)
llite.lustre-ffffa01fd1f78800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffffa01fd1f78800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 9.8836 seconds
llite.lustre-ffffa01fd1f78800.read_ahead_stats=
snapshot_time                       1787748675.077997211 secs.nsecs
start_time                          1787748664.095742789 secs.nsecs
elapsed_time                        10.982254422 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-ffffa01fd1f78800.read_ahead_stats=clear
llite.lustre-ffffa01fd1f78800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.45245 seconds
llite.lustre-ffffa01fd1f78800.read_ahead_stats=
snapshot_time                       1787748687.090764328 secs.nsecs
start_time                          1787748675.104320112 secs.nsecs
elapsed_time                        11.986444216 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-ffffa01fd1f78800.max_read_ahead_whole_mb=4