== sanity test 248c: verify whole file read behavior ===== 17:19:45 (1788643185)
llite.lustre-ffff950ac3e07000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff950ac3e07000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.80588 seconds
llite.lustre-ffff950ac3e07000.read_ahead_stats=
snapshot_time                       1788643195.058117072 secs.nsecs
start_time                          1788643187.416950702 secs.nsecs
elapsed_time                        7.641166370 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-ffff950ac3e07000.read_ahead_stats=clear
llite.lustre-ffff950ac3e07000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.80167 seconds
llite.lustre-ffff950ac3e07000.read_ahead_stats=
snapshot_time                       1788643203.468046932 secs.nsecs
start_time                          1788643195.126019004 secs.nsecs
elapsed_time                        8.342027928 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-ffff950ac3e07000.max_read_ahead_whole_mb=4