== sanity test 248c: verify whole file read behavior ===== 15:10:11 (1789067411)
llite.lustre-ffffa05d82d86000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffffa05d82d86000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.40752 seconds
llite.lustre-ffffa05d82d86000.read_ahead_stats=
snapshot_time                       1789067421.411005556 secs.nsecs
start_time                          1789067413.296901739 secs.nsecs
elapsed_time                        8.114103817 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-ffffa05d82d86000.read_ahead_stats=clear
llite.lustre-ffffa05d82d86000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.68279 seconds
llite.lustre-ffffa05d82d86000.read_ahead_stats=
snapshot_time                       1789067430.044201290 secs.nsecs
start_time                          1789067421.441956276 secs.nsecs
elapsed_time                        8.602245014 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-ffffa05d82d86000.max_read_ahead_whole_mb=4