== sanity test 248c: verify whole file read behavior ===== 02:24:54 (1785392694)
llite.lustre-ffff99e202fbb800.read_ahead_stats=c
llite.lustre-ffff99e202fbb800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 15.2534 seconds
llite.lustre-ffff99e202fbb800.read_ahead_stats=
snapshot_time                       1785392714.284278747 secs.nsecs
start_time                          1785392698.175139713 secs.nsecs
elapsed_time                        16.109139034 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-ffff99e202fbb800.read_ahead_stats=clear
llite.lustre-ffff99e202fbb800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.78276 seconds
llite.lustre-ffff99e202fbb800.read_ahead_stats=
snapshot_time                       1785392725.669806042 secs.nsecs
start_time                          1785392714.313977602 secs.nsecs
elapsed_time                        11.355828440 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
Try 0 failed: whole file readahead took: 15.2534, greater than non: 8.78276
llite.lustre-ffff99e202fbb800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.03935 seconds
llite.lustre-ffff99e202fbb800.read_ahead_stats=
snapshot_time                       1785392736.336208884 secs.nsecs
start_time                          1785392714.313977602 secs.nsecs
elapsed_time                        22.022231282 secs.nsecs
hits                                32764 samples [pages]
misses                              4 samples [pages]
zero_size_window                    2 samples [pages]
failed_to_fast_read                 6 samples [pages]
readahead_pages                     2 samples [pages] 16382 16382 32764
llite.lustre-ffff99e202fbb800.read_ahead_stats=clear
llite.lustre-ffff99e202fbb800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.41564 seconds
llite.lustre-ffff99e202fbb800.read_ahead_stats=
snapshot_time                       1785392747.532930100 secs.nsecs
start_time                          1785392736.347607184 secs.nsecs
elapsed_time                        11.185322916 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 1
llite.lustre-ffff99e202fbb800.max_read_ahead_whole_mb=4