== sanity test 248c: verify whole file read behavior ===== 02:09:38 (1788847778)
llite.lustre-ffff8a2e5807f000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8a2e5807f000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.44667 seconds
llite.lustre-ffff8a2e5807f000.read_ahead_stats=
snapshot_time                       1788847784.859506557 secs.nsecs
start_time                          1788847779.768928021 secs.nsecs
elapsed_time                        5.090578536 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-ffff8a2e5807f000.read_ahead_stats=clear
llite.lustre-ffff8a2e5807f000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.39269 seconds
llite.lustre-ffff8a2e5807f000.read_ahead_stats=
snapshot_time                       1788847790.903322724 secs.nsecs
start_time                          1788847784.870108777 secs.nsecs
elapsed_time                        6.033213947 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-ffff8a2e5807f000.max_read_ahead_whole_mb=4