== sanity test 248c: verify whole file read behavior ===== 18:41:20 (1784414480)
llite.lustre-ffff9db7d138e800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff9db7d138e800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.96009 seconds
llite.lustre-ffff9db7d138e800.read_ahead_stats=
snapshot_time                       1784414483.957056063 secs.nsecs
start_time                          1784414480.844680416 secs.nsecs
elapsed_time                        3.112375647 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-ffff9db7d138e800.read_ahead_stats=clear
llite.lustre-ffff9db7d138e800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.19611 seconds
llite.lustre-ffff9db7d138e800.read_ahead_stats=
snapshot_time                       1784414487.660082966 secs.nsecs
start_time                          1784414483.961855365 secs.nsecs
elapsed_time                        3.698227601 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-ffff9db7d138e800.max_read_ahead_whole_mb=4