== sanity test 248c: verify whole file read behavior ===== 22:45:38 (1789267538)
llite.lustre-ffff9456601c7800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9456601c7800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.50798 seconds
llite.lustre-ffff9456601c7800.read_ahead_stats=
snapshot_time                       1789267547.559018055 secs.nsecs
start_time                          1789267540.453872914 secs.nsecs
elapsed_time                        7.105145141 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-ffff9456601c7800.read_ahead_stats=clear
llite.lustre-ffff9456601c7800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.57897 seconds
llite.lustre-ffff9456601c7800.read_ahead_stats=
snapshot_time                       1789267555.293909642 secs.nsecs
start_time                          1789267547.586664067 secs.nsecs
elapsed_time                        7.707245575 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-ffff9456601c7800.max_read_ahead_whole_mb=4