== sanity test 248c: verify whole file read behavior ===== 09:15:59 (1788441359)
llite.lustre-ffff9ab1101c8800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9ab1101c8800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.61555 seconds
llite.lustre-ffff9ab1101c8800.read_ahead_stats=
snapshot_time                       1788441371.557943854 secs.nsecs
start_time                          1788441362.035529614 secs.nsecs
elapsed_time                        9.522414240 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-ffff9ab1101c8800.read_ahead_stats=clear
llite.lustre-ffff9ab1101c8800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.31242 seconds
llite.lustre-ffff9ab1101c8800.read_ahead_stats=
snapshot_time                       1788441382.957251470 secs.nsecs
start_time                          1788441371.598443427 secs.nsecs
elapsed_time                        11.358808043 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-ffff9ab1101c8800.max_read_ahead_whole_mb=4