== sanity test 248c: verify whole file read behavior ===== 03:42:36 (1789026156)
llite.lustre-ffff97f188540000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff97f188540000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.56015 seconds
llite.lustre-ffff97f188540000.read_ahead_stats=
snapshot_time                       1789026169.217233497 secs.nsecs
start_time                          1789026159.714727286 secs.nsecs
elapsed_time                        9.502506211 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-ffff97f188540000.read_ahead_stats=clear
llite.lustre-ffff97f188540000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.69426 seconds
llite.lustre-ffff97f188540000.read_ahead_stats=
snapshot_time                       1789026179.376668923 secs.nsecs
start_time                          1789026169.251319512 secs.nsecs
elapsed_time                        10.125349411 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-ffff97f188540000.max_read_ahead_whole_mb=4