== sanity test 248c: verify whole file read behavior ===== 23:08:55 (1784084935)
llite.lustre-ffff94d191737000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff94d191737000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.31727 seconds
llite.lustre-ffff94d191737000.read_ahead_stats=
snapshot_time                       1784084939.990160075 secs.nsecs
start_time                          1784084936.437273095 secs.nsecs
elapsed_time                        3.552886980 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-ffff94d191737000.read_ahead_stats=clear
llite.lustre-ffff94d191737000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.27865 seconds
llite.lustre-ffff94d191737000.read_ahead_stats=
snapshot_time                       1784084944.000709893 secs.nsecs
start_time                          1784084939.999084452 secs.nsecs
elapsed_time                        4.001625441 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-ffff94d191737000.max_read_ahead_whole_mb=4