== sanity test 248c: verify whole file read behavior ===== 16:30:16 (1788467416)
llite.lustre-ffff8d1e10455800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff8d1e10455800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.96167 seconds
llite.lustre-ffff8d1e10455800.read_ahead_stats=
snapshot_time                       1788467423.390578635 secs.nsecs
start_time                          1788467417.966036953 secs.nsecs
elapsed_time                        5.424541682 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-ffff8d1e10455800.read_ahead_stats=clear
llite.lustre-ffff8d1e10455800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.7422 seconds
llite.lustre-ffff8d1e10455800.read_ahead_stats=
snapshot_time                       1788467429.584450205 secs.nsecs
start_time                          1788467423.420080418 secs.nsecs
elapsed_time                        6.164369787 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-ffff8d1e10455800.max_read_ahead_whole_mb=4