== sanity test 248c: verify whole file read behavior ===== 03:45:21 (1786693521)
llite.lustre-ffffa068e058b800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffffa068e058b800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.95886 seconds
llite.lustre-ffffa068e058b800.read_ahead_stats=
snapshot_time                       1786693533.723071245 secs.nsecs
start_time                          1786693523.833912682 secs.nsecs
elapsed_time                        9.889158563 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-ffffa068e058b800.read_ahead_stats=clear
llite.lustre-ffffa068e058b800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 10.9599 seconds
llite.lustre-ffffa068e058b800.read_ahead_stats=
snapshot_time                       1786693547.504858858 secs.nsecs
start_time                          1786693533.743654364 secs.nsecs
elapsed_time                        13.761204494 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-ffffa068e058b800.max_read_ahead_whole_mb=4