== sanity test 248c: verify whole file read behavior ===== 19:02:24 (1786402944)
llite.lustre-ffff9aba08f39800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9aba08f39800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.00149 seconds
llite.lustre-ffff9aba08f39800.read_ahead_stats=
snapshot_time                       1786402953.241376414 secs.nsecs
start_time                          1786402945.704228490 secs.nsecs
elapsed_time                        7.537147924 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-ffff9aba08f39800.read_ahead_stats=clear
llite.lustre-ffff9aba08f39800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.85369 seconds
llite.lustre-ffff9aba08f39800.read_ahead_stats=
snapshot_time                       1786402960.289743667 secs.nsecs
start_time                          1786402953.268543198 secs.nsecs
elapsed_time                        7.021200469 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-ffff9aba08f39800.max_read_ahead_whole_mb=4