== sanity test 248c: verify whole file read behavior ===== 03:57:49 (1789459069)
llite.lustre-ffff9f4506f17800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9f4506f17800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.51273 seconds
llite.lustre-ffff9f4506f17800.read_ahead_stats=
snapshot_time                       1789459078.697445980 secs.nsecs
start_time                          1789459071.371142163 secs.nsecs
elapsed_time                        7.326303817 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-ffff9f4506f17800.read_ahead_stats=clear
llite.lustre-ffff9f4506f17800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.66849 seconds
llite.lustre-ffff9f4506f17800.read_ahead_stats=
snapshot_time                       1789459088.066460536 secs.nsecs
start_time                          1789459078.724922928 secs.nsecs
elapsed_time                        9.341537608 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-ffff9f4506f17800.max_read_ahead_whole_mb=4