== sanity test 248c: verify whole file read behavior ===== 11:45:43 (1786635943)
llite.lustre-ffff9ffb11a50000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff9ffb11a50000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.87596 seconds
llite.lustre-ffff9ffb11a50000.read_ahead_stats=
snapshot_time                       1786635953.082160039 secs.nsecs
start_time                          1786635945.508449690 secs.nsecs
elapsed_time                        7.573710349 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-ffff9ffb11a50000.read_ahead_stats=clear
llite.lustre-ffff9ffb11a50000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.58588 seconds
llite.lustre-ffff9ffb11a50000.read_ahead_stats=
snapshot_time                       1786635961.472895102 secs.nsecs
start_time                          1786635953.102309656 secs.nsecs
elapsed_time                        8.370585446 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-ffff9ffb11a50000.max_read_ahead_whole_mb=4