== sanity test 248c: verify whole file read behavior ===== 22:28:30 (1789180110)
llite.lustre-ffff8ccf591e9000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8ccf591e9000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.54038 seconds
llite.lustre-ffff8ccf591e9000.read_ahead_stats=
snapshot_time                       1789180118.520442219 secs.nsecs
start_time                          1789180112.170507897 secs.nsecs
elapsed_time                        6.349934322 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-ffff8ccf591e9000.read_ahead_stats=clear
llite.lustre-ffff8ccf591e9000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.31729 seconds
llite.lustre-ffff8ccf591e9000.read_ahead_stats=
snapshot_time                       1789180127.988706010 secs.nsecs
start_time                          1789180118.528922898 secs.nsecs
elapsed_time                        9.459783112 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-ffff8ccf591e9000.max_read_ahead_whole_mb=4