== sanity test 248c: verify whole file read behavior ===== 00:05:14 (1789185914)
llite.lustre-ffff91900763e800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff91900763e800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.52086 seconds
llite.lustre-ffff91900763e800.read_ahead_stats=
snapshot_time                       1789185922.617013096 secs.nsecs
start_time                          1789185916.406795752 secs.nsecs
elapsed_time                        6.210217344 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-ffff91900763e800.read_ahead_stats=clear
llite.lustre-ffff91900763e800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.18322 seconds
llite.lustre-ffff91900763e800.read_ahead_stats=
snapshot_time                       1789185930.551537304 secs.nsecs
start_time                          1789185922.651857986 secs.nsecs
elapsed_time                        7.899679318 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-ffff91900763e800.max_read_ahead_whole_mb=4