== sanity test 248c: verify whole file read behavior ===== 10:30:29 (1782225029)
llite.lustre-ffff9e2c1fd2e000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff9e2c1fd2e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.66754 seconds
llite.lustre-ffff9e2c1fd2e000.read_ahead_stats=
snapshot_time                       1782225039.858410321 secs.nsecs
start_time                          1782225031.461677980 secs.nsecs
elapsed_time                        8.396732341 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-ffff9e2c1fd2e000.read_ahead_stats=clear
llite.lustre-ffff9e2c1fd2e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.61034 seconds
llite.lustre-ffff9e2c1fd2e000.read_ahead_stats=
snapshot_time                       1782225049.850669631 secs.nsecs
start_time                          1782225039.890300846 secs.nsecs
elapsed_time                        9.960368785 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-ffff9e2c1fd2e000.max_read_ahead_whole_mb=4