== sanity test 248c: verify whole file read behavior ===== 23:48:10 (1786420090)
llite.lustre-ffff9561126c2800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9561126c2800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.03499 seconds
llite.lustre-ffff9561126c2800.read_ahead_stats=
snapshot_time                       1786420099.039635989 secs.nsecs
start_time                          1786420092.490149451 secs.nsecs
elapsed_time                        6.549486538 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-ffff9561126c2800.read_ahead_stats=clear
llite.lustre-ffff9561126c2800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.94186 seconds
llite.lustre-ffff9561126c2800.read_ahead_stats=
snapshot_time                       1786420109.054884146 secs.nsecs
start_time                          1786420099.072950897 secs.nsecs
elapsed_time                        9.981933249 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-ffff9561126c2800.max_read_ahead_whole_mb=4