== sanity test 248c: verify whole file read behavior ===== 03:14:33 (1787469273)
llite.lustre-ffff8d4858c2e000.read_ahead_stats=c
llite.lustre-ffff8d4858c2e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 10.7494 seconds
llite.lustre-ffff8d4858c2e000.read_ahead_stats=
snapshot_time                       1787469289.008364752 secs.nsecs
start_time                          1787469276.909247942 secs.nsecs
elapsed_time                        12.099116810 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-ffff8d4858c2e000.read_ahead_stats=clear
llite.lustre-ffff8d4858c2e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.08733 seconds
llite.lustre-ffff8d4858c2e000.read_ahead_stats=
snapshot_time                       1787469297.283120799 secs.nsecs
start_time                          1787469289.029428991 secs.nsecs
elapsed_time                        8.253691808 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: 10.7494, greater than non: 5.08733
llite.lustre-ffff8d4858c2e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 9.08698 seconds
llite.lustre-ffff8d4858c2e000.read_ahead_stats=
snapshot_time                       1787469308.342327663 secs.nsecs
start_time                          1787469289.029428991 secs.nsecs
elapsed_time                        19.312898672 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-ffff8d4858c2e000.read_ahead_stats=clear
llite.lustre-ffff8d4858c2e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 10.5308 seconds
llite.lustre-ffff8d4858c2e000.read_ahead_stats=
snapshot_time                       1787469321.320112646 secs.nsecs
start_time                          1787469308.407280413 secs.nsecs
elapsed_time                        12.912832233 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-ffff8d4858c2e000.max_read_ahead_whole_mb=4