== sanity test 248c: verify whole file read behavior ===== 02:54:47 (1785394487)
llite.lustre-ffff889e8acc0000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff889e8acc0000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.5232 seconds
llite.lustre-ffff889e8acc0000.read_ahead_stats=
snapshot_time                       1785394498.416585562 secs.nsecs
start_time                          1785394490.176551845 secs.nsecs
elapsed_time                        8.240033717 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-ffff889e8acc0000.read_ahead_stats=clear
llite.lustre-ffff889e8acc0000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.18095 seconds
llite.lustre-ffff889e8acc0000.read_ahead_stats=
snapshot_time                       1785394507.699266298 secs.nsecs
start_time                          1785394498.433465841 secs.nsecs
elapsed_time                        9.265800457 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-ffff889e8acc0000.max_read_ahead_whole_mb=4