== sanity test 248c: verify whole file read behavior ===== 14:08:05 (1782929285)
llite.lustre-ffff9d6d658a7000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d6d658a7000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.80952 seconds
llite.lustre-ffff9d6d658a7000.read_ahead_stats=
snapshot_time                       1782929288.874976914 secs.nsecs
start_time                          1782929285.896176065 secs.nsecs
elapsed_time                        2.978800849 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-ffff9d6d658a7000.read_ahead_stats=clear
llite.lustre-ffff9d6d658a7000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.28046 seconds
llite.lustre-ffff9d6d658a7000.read_ahead_stats=
snapshot_time                       1782929292.684230004 secs.nsecs
start_time                          1782929288.879376286 secs.nsecs
elapsed_time                        3.804853718 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-ffff9d6d658a7000.max_read_ahead_whole_mb=4