== sanity test 248c: verify whole file read behavior ===== 00:52:28 (1788843148)
llite.lustre-ffff8f7751c04000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8f7751c04000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.20996 seconds
llite.lustre-ffff8f7751c04000.read_ahead_stats=
snapshot_time                       1788843159.638534885 secs.nsecs
start_time                          1788843151.578134885 secs.nsecs
elapsed_time                        8.060400000 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-ffff8f7751c04000.read_ahead_stats=clear
llite.lustre-ffff8f7751c04000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.38436 seconds
llite.lustre-ffff8f7751c04000.read_ahead_stats=
snapshot_time                       1788843169.933964737 secs.nsecs
start_time                          1788843159.669256547 secs.nsecs
elapsed_time                        10.264708190 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-ffff8f7751c04000.max_read_ahead_whole_mb=4