== sanity test 248c: verify whole file read behavior ===== 07:36:31 (1787139391)
llite.lustre-ffff88fc19c96800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff88fc19c96800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.01872 seconds
llite.lustre-ffff88fc19c96800.read_ahead_stats=
snapshot_time                       1787139399.660519692 secs.nsecs
start_time                          1787139393.098850396 secs.nsecs
elapsed_time                        6.561669296 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-ffff88fc19c96800.read_ahead_stats=clear
llite.lustre-ffff88fc19c96800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.1473 seconds
llite.lustre-ffff88fc19c96800.read_ahead_stats=
snapshot_time                       1787139408.052966550 secs.nsecs
start_time                          1787139399.682919878 secs.nsecs
elapsed_time                        8.370046672 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-ffff88fc19c96800.max_read_ahead_whole_mb=4