== sanity test 248c: verify whole file read behavior ===== 08:09:48 (1789301388)
llite.lustre-ffff93e4d064d000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff93e4d064d000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.02161 seconds
llite.lustre-ffff93e4d064d000.read_ahead_stats=
snapshot_time                       1789301396.010290684 secs.nsecs
start_time                          1789301390.242789764 secs.nsecs
elapsed_time                        5.767500920 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-ffff93e4d064d000.read_ahead_stats=clear
llite.lustre-ffff93e4d064d000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.08972 seconds
llite.lustre-ffff93e4d064d000.read_ahead_stats=
snapshot_time                       1789301405.984755300 secs.nsecs
start_time                          1789301396.048032113 secs.nsecs
elapsed_time                        9.936723187 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-ffff93e4d064d000.max_read_ahead_whole_mb=4