== sanity test 248c: verify whole file read behavior ===== 08:50:13 (1786020613)
llite.lustre-ffff890fc6258000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff890fc6258000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 14.6234 seconds
llite.lustre-ffff890fc6258000.read_ahead_stats=
snapshot_time                       1786020631.516018286 secs.nsecs
start_time                          1786020615.711418841 secs.nsecs
elapsed_time                        15.804599445 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-ffff890fc6258000.read_ahead_stats=clear
llite.lustre-ffff890fc6258000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 16.2943 seconds
llite.lustre-ffff890fc6258000.read_ahead_stats=
snapshot_time                       1786020652.238020810 secs.nsecs
start_time                          1786020631.573176894 secs.nsecs
elapsed_time                        20.664843916 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-ffff890fc6258000.max_read_ahead_whole_mb=4