== sanity test 248c: verify whole file read behavior ===== 15:38:18 (1789587498)
llite.lustre-ffff925442ef3800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff925442ef3800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.96063 seconds
llite.lustre-ffff925442ef3800.read_ahead_stats=
snapshot_time                       1789587509.296199374 secs.nsecs
start_time                          1789587501.610367270 secs.nsecs
elapsed_time                        7.685832104 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-ffff925442ef3800.read_ahead_stats=clear
llite.lustre-ffff925442ef3800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 10.8256 seconds
llite.lustre-ffff925442ef3800.read_ahead_stats=
snapshot_time                       1789587522.014874369 secs.nsecs
start_time                          1789587509.307962772 secs.nsecs
elapsed_time                        12.706911597 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-ffff925442ef3800.max_read_ahead_whole_mb=4