== sanity test 248c: verify whole file read behavior ===== 11:20:51 (1788362451)
llite.lustre-ffff95fdd805c000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff95fdd805c000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.377 seconds
llite.lustre-ffff95fdd805c000.read_ahead_stats=
snapshot_time                       1788362456.746938752 secs.nsecs
start_time                          1788362452.962614362 secs.nsecs
elapsed_time                        3.784324390 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-ffff95fdd805c000.read_ahead_stats=clear
llite.lustre-ffff95fdd805c000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.93275 seconds
llite.lustre-ffff95fdd805c000.read_ahead_stats=
snapshot_time                       1788362461.923408124 secs.nsecs
start_time                          1788362456.758699722 secs.nsecs
elapsed_time                        5.164708402 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-ffff95fdd805c000.max_read_ahead_whole_mb=4