== sanity test 248c: verify whole file read behavior ===== 17:41:44 (1787866904)
llite.lustre-ffff9f2503251800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9f2503251800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.67396 seconds
llite.lustre-ffff9f2503251800.read_ahead_stats=
snapshot_time                       1787866913.670466774 secs.nsecs
start_time                          1787866906.308294260 secs.nsecs
elapsed_time                        7.362172514 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-ffff9f2503251800.read_ahead_stats=clear
llite.lustre-ffff9f2503251800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.97133 seconds
llite.lustre-ffff9f2503251800.read_ahead_stats=
snapshot_time                       1787866925.924734778 secs.nsecs
start_time                          1787866913.682108323 secs.nsecs
elapsed_time                        12.242626455 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-ffff9f2503251800.max_read_ahead_whole_mb=4