== sanity test 248c: verify whole file read behavior ===== 15:49:39 (1789501779)
llite.lustre-ffff9a0946b82800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9a0946b82800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.93684 seconds
llite.lustre-ffff9a0946b82800.read_ahead_stats=
snapshot_time                       1789501787.628865178 secs.nsecs
start_time                          1789501781.148334631 secs.nsecs
elapsed_time                        6.480530547 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-ffff9a0946b82800.read_ahead_stats=clear
llite.lustre-ffff9a0946b82800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.64352 seconds
llite.lustre-ffff9a0946b82800.read_ahead_stats=
snapshot_time                       1789501797.088683895 secs.nsecs
start_time                          1789501787.648888091 secs.nsecs
elapsed_time                        9.439795804 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-ffff9a0946b82800.max_read_ahead_whole_mb=4