== sanity test 248c: verify whole file read behavior ===== 05:57:44 (1789639064)
llite.lustre-ffff95fc83da6800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff95fc83da6800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.87009 seconds
llite.lustre-ffff95fc83da6800.read_ahead_stats=
snapshot_time                       1789639072.171624289 secs.nsecs
start_time                          1789639065.616485291 secs.nsecs
elapsed_time                        6.555138998 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-ffff95fc83da6800.read_ahead_stats=clear
llite.lustre-ffff95fc83da6800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.20154 seconds
llite.lustre-ffff95fc83da6800.read_ahead_stats=
snapshot_time                       1789639079.816574216 secs.nsecs
start_time                          1789639072.192327559 secs.nsecs
elapsed_time                        7.624246657 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-ffff95fc83da6800.max_read_ahead_whole_mb=4