== sanity test 248c: verify whole file read behavior ===== 07:00:09 (1789383609)
llite.lustre-ffff996c613cb000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff996c613cb000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.97422 seconds
llite.lustre-ffff996c613cb000.read_ahead_stats=
snapshot_time                       1789383618.732719807 secs.nsecs
start_time                          1789383611.017998462 secs.nsecs
elapsed_time                        7.714721345 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-ffff996c613cb000.read_ahead_stats=clear
llite.lustre-ffff996c613cb000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.234 seconds
llite.lustre-ffff996c613cb000.read_ahead_stats=
snapshot_time                       1789383628.022141792 secs.nsecs
start_time                          1789383618.743300445 secs.nsecs
elapsed_time                        9.278841347 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-ffff996c613cb000.max_read_ahead_whole_mb=4