== sanity test 248c: verify whole file read behavior ===== 19:19:38 (1787699978)
llite.lustre-ffff91560d26f000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff91560d26f000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.74055 seconds
llite.lustre-ffff91560d26f000.read_ahead_stats=
snapshot_time                       1787699988.922118652 secs.nsecs
start_time                          1787699980.371688802 secs.nsecs
elapsed_time                        8.550429850 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-ffff91560d26f000.read_ahead_stats=clear
llite.lustre-ffff91560d26f000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.88609 seconds
llite.lustre-ffff91560d26f000.read_ahead_stats=
snapshot_time                       1787699999.147160945 secs.nsecs
start_time                          1787699988.937361615 secs.nsecs
elapsed_time                        10.209799330 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-ffff91560d26f000.max_read_ahead_whole_mb=4