== sanity test 248c: verify whole file read behavior ===== 10:15:33 (1789481733)
llite.lustre-ffff9ad8f989e000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9ad8f989e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.1955 seconds
llite.lustre-ffff9ad8f989e000.read_ahead_stats=
snapshot_time                       1789481739.271099985 secs.nsecs
start_time                          1789481734.621569198 secs.nsecs
elapsed_time                        4.649530787 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-ffff9ad8f989e000.read_ahead_stats=clear
llite.lustre-ffff9ad8f989e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.07159 seconds
llite.lustre-ffff9ad8f989e000.read_ahead_stats=
snapshot_time                       1789481744.454200841 secs.nsecs
start_time                          1789481739.285965986 secs.nsecs
elapsed_time                        5.168234855 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-ffff9ad8f989e000.max_read_ahead_whole_mb=4