== sanity test 248c: verify whole file read behavior ===== 16:13:04 (1786651984)
llite.lustre-ffff8bc3856e8000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8bc3856e8000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.45837 seconds
llite.lustre-ffff8bc3856e8000.read_ahead_stats=
snapshot_time                       1786651993.922937650 secs.nsecs
start_time                          1786651986.856031702 secs.nsecs
elapsed_time                        7.066905948 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-ffff8bc3856e8000.read_ahead_stats=clear
llite.lustre-ffff8bc3856e8000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.09497 seconds
llite.lustre-ffff8bc3856e8000.read_ahead_stats=
snapshot_time                       1786652003.028319255 secs.nsecs
start_time                          1786651993.938316788 secs.nsecs
elapsed_time                        9.090002467 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-ffff8bc3856e8000.max_read_ahead_whole_mb=4