== sanity test 248c: verify whole file read behavior ===== 01:45:21 (1784699121)
llite.lustre-ffffa04a0aefb800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffffa04a0aefb800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.29711 seconds
llite.lustre-ffffa04a0aefb800.read_ahead_stats=
snapshot_time                       1784699126.182315229 secs.nsecs
start_time                          1784699122.492280838 secs.nsecs
elapsed_time                        3.690034391 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-ffffa04a0aefb800.read_ahead_stats=clear
llite.lustre-ffffa04a0aefb800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.19217 seconds
llite.lustre-ffffa04a0aefb800.read_ahead_stats=
snapshot_time                       1784699130.169111945 secs.nsecs
start_time                          1784699126.191818608 secs.nsecs
elapsed_time                        3.977293337 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-ffffa04a0aefb800.max_read_ahead_whole_mb=4