== sanity test 248c: verify whole file read behavior ===== 03:02:55 (1789369375)
llite.lustre-ffff928d11daf800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff928d11daf800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.86905 seconds
llite.lustre-ffff928d11daf800.read_ahead_stats=
snapshot_time                       1789369379.194713089 secs.nsecs
start_time                          1789369376.131481021 secs.nsecs
elapsed_time                        3.063232068 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-ffff928d11daf800.read_ahead_stats=clear
llite.lustre-ffff928d11daf800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.91699 seconds
llite.lustre-ffff928d11daf800.read_ahead_stats=
snapshot_time                       1789369382.696372962 secs.nsecs
start_time                          1789369379.199740948 secs.nsecs
elapsed_time                        3.496632014 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-ffff928d11daf800.max_read_ahead_whole_mb=4