== sanity test 248c: verify whole file read behavior ===== 12:02:07 (1786032127)
llite.lustre-ffff9a31724b9000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9a31724b9000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 9.31597 seconds
llite.lustre-ffff9a31724b9000.read_ahead_stats=
snapshot_time                       1786032139.441024304 secs.nsecs
start_time                          1786032129.307584747 secs.nsecs
elapsed_time                        10.133439557 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-ffff9a31724b9000.read_ahead_stats=clear
llite.lustre-ffff9a31724b9000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.74071 seconds
llite.lustre-ffff9a31724b9000.read_ahead_stats=
snapshot_time                       1786032148.956125900 secs.nsecs
start_time                          1786032139.475009207 secs.nsecs
elapsed_time                        9.481116693 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-ffff9a31724b9000.max_read_ahead_whole_mb=4