== sanity test 248c: verify whole file read behavior ===== 19:23:44 (1787786624)
llite.lustre-ffff9938d0077800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9938d0077800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.47496 seconds
llite.lustre-ffff9938d0077800.read_ahead_stats=
snapshot_time                       1787786633.065083973 secs.nsecs
start_time                          1787786626.095182830 secs.nsecs
elapsed_time                        6.969901143 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-ffff9938d0077800.read_ahead_stats=clear
llite.lustre-ffff9938d0077800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.32876 seconds
llite.lustre-ffff9938d0077800.read_ahead_stats=
snapshot_time                       1787786642.677459224 secs.nsecs
start_time                          1787786633.100645913 secs.nsecs
elapsed_time                        9.576813311 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-ffff9938d0077800.max_read_ahead_whole_mb=4