== sanity test 248c: verify whole file read behavior ===== 09:15:16 (1787318116)
llite.lustre-ffff96b202d3f800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff96b202d3f800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.71965 seconds
llite.lustre-ffff96b202d3f800.read_ahead_stats=
snapshot_time                       1787318124.985977765 secs.nsecs
start_time                          1787318118.609961777 secs.nsecs
elapsed_time                        6.376015988 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-ffff96b202d3f800.read_ahead_stats=clear
llite.lustre-ffff96b202d3f800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.96668 seconds
llite.lustre-ffff96b202d3f800.read_ahead_stats=
snapshot_time                       1787318132.644034456 secs.nsecs
start_time                          1787318125.004676497 secs.nsecs
elapsed_time                        7.639357959 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-ffff96b202d3f800.max_read_ahead_whole_mb=4