== sanity test 248c: verify whole file read behavior ===== 15:29:49 (1789586989)
llite.lustre-ffff96c51f713000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff96c51f713000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.64312 seconds
llite.lustre-ffff96c51f713000.read_ahead_stats=
snapshot_time                       1789587001.047744422 secs.nsecs
start_time                          1789586992.807406375 secs.nsecs
elapsed_time                        8.240338047 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-ffff96c51f713000.read_ahead_stats=clear
llite.lustre-ffff96c51f713000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.94 seconds
llite.lustre-ffff96c51f713000.read_ahead_stats=
snapshot_time                       1789587011.402603865 secs.nsecs
start_time                          1789587001.072370350 secs.nsecs
elapsed_time                        10.330233515 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-ffff96c51f713000.max_read_ahead_whole_mb=4