== sanity test 248c: verify whole file read behavior ===== 10:15:53 (1789136153)
llite.lustre-ffff99d6d92e9000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff99d6d92e9000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.01814 seconds
llite.lustre-ffff99d6d92e9000.read_ahead_stats=
snapshot_time                       1789136161.864524231 secs.nsecs
start_time                          1789136155.182979286 secs.nsecs
elapsed_time                        6.681544945 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-ffff99d6d92e9000.read_ahead_stats=clear
llite.lustre-ffff99d6d92e9000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.50704 seconds
llite.lustre-ffff99d6d92e9000.read_ahead_stats=
snapshot_time                       1789136171.560746307 secs.nsecs
start_time                          1789136161.886059710 secs.nsecs
elapsed_time                        9.674686597 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-ffff99d6d92e9000.max_read_ahead_whole_mb=4