== sanity test 248c: verify whole file read behavior ===== 09:23:21 (1788873801)
llite.lustre-ffff9d6742db5800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d6742db5800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.00773 seconds
llite.lustre-ffff9d6742db5800.read_ahead_stats=
snapshot_time                       1788873809.560844175 secs.nsecs
start_time                          1788873802.972101511 secs.nsecs
elapsed_time                        6.588742664 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-ffff9d6742db5800.read_ahead_stats=clear
llite.lustre-ffff9d6742db5800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.42938 seconds
llite.lustre-ffff9d6742db5800.read_ahead_stats=
snapshot_time                       1788873818.019069229 secs.nsecs
start_time                          1788873809.578946358 secs.nsecs
elapsed_time                        8.440122871 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-ffff9d6742db5800.max_read_ahead_whole_mb=4