== sanity test 248c: verify whole file read behavior ===== 04:15:42 (1781684142)
llite.lustre-ffff90ed093df800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff90ed093df800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.1009 seconds
llite.lustre-ffff90ed093df800.read_ahead_stats=
snapshot_time                       1781684145.936662563 secs.nsecs
start_time                          1781684142.620123009 secs.nsecs
elapsed_time                        3.316539554 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-ffff90ed093df800.read_ahead_stats=clear
llite.lustre-ffff90ed093df800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.83125 seconds
llite.lustre-ffff90ed093df800.read_ahead_stats=
snapshot_time                       1781684149.351820301 secs.nsecs
start_time                          1781684145.942196213 secs.nsecs
elapsed_time                        3.409624088 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-ffff90ed093df800.max_read_ahead_whole_mb=4