== sanity test 248c: verify whole file read behavior ===== 19:10:50 (1784589050)
llite.lustre-ffff940c487c5800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff940c487c5800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.73391 seconds
llite.lustre-ffff940c487c5800.read_ahead_stats=
snapshot_time                       1784589059.507692734 secs.nsecs
start_time                          1784589052.081661752 secs.nsecs
elapsed_time                        7.426030982 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-ffff940c487c5800.read_ahead_stats=clear
llite.lustre-ffff940c487c5800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.65288 seconds
llite.lustre-ffff940c487c5800.read_ahead_stats=
snapshot_time                       1784589067.668027315 secs.nsecs
start_time                          1784589059.545189592 secs.nsecs
elapsed_time                        8.122837723 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-ffff940c487c5800.max_read_ahead_whole_mb=4