== sanity test 248c: verify whole file read behavior ===== 09:09:00 (1788354540)
llite.lustre-ffff9106c3acb000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9106c3acb000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.82171 seconds
llite.lustre-ffff9106c3acb000.read_ahead_stats=
snapshot_time                       1788354543.651648551 secs.nsecs
start_time                          1788354540.661819299 secs.nsecs
elapsed_time                        2.989829252 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-ffff9106c3acb000.read_ahead_stats=clear
llite.lustre-ffff9106c3acb000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.97474 seconds
llite.lustre-ffff9106c3acb000.read_ahead_stats=
snapshot_time                       1788354547.190384285 secs.nsecs
start_time                          1788354543.657504416 secs.nsecs
elapsed_time                        3.532879869 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-ffff9106c3acb000.max_read_ahead_whole_mb=4