== sanity test 248c: verify whole file read behavior ===== 16:40:14 (1784234414)
llite.lustre-ffff95d351135000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff95d351135000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.00386 seconds
llite.lustre-ffff95d351135000.read_ahead_stats=
snapshot_time                       1784234418.232894755 secs.nsecs
start_time                          1784234415.066785225 secs.nsecs
elapsed_time                        3.166109530 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-ffff95d351135000.read_ahead_stats=clear
llite.lustre-ffff95d351135000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.83375 seconds
llite.lustre-ffff95d351135000.read_ahead_stats=
snapshot_time                       1784234421.627407540 secs.nsecs
start_time                          1784234418.238350165 secs.nsecs
elapsed_time                        3.389057375 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-ffff95d351135000.max_read_ahead_whole_mb=4