== sanity test 248c: verify whole file read behavior ===== 18:55:51 (1787698551)
llite.lustre-ffff9957edf00800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9957edf00800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.49528 seconds
llite.lustre-ffff9957edf00800.read_ahead_stats=
snapshot_time                       1787698554.779846420 secs.nsecs
start_time                          1787698552.109879943 secs.nsecs
elapsed_time                        2.669966477 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-ffff9957edf00800.read_ahead_stats=clear
llite.lustre-ffff9957edf00800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.79774 seconds
llite.lustre-ffff9957edf00800.read_ahead_stats=
snapshot_time                       1787698558.166606377 secs.nsecs
start_time                          1787698554.785420312 secs.nsecs
elapsed_time                        3.381186065 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-ffff9957edf00800.max_read_ahead_whole_mb=4