== sanity test 248c: verify whole file read behavior ===== 09:53:30 (1790776410)
llite.lustre-ffff96d087e50800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff96d087e50800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.97617 seconds
llite.lustre-ffff96d087e50800.read_ahead_stats=
snapshot_time                       1790776422.463645047 secs.nsecs
start_time                          1790776412.502140576 secs.nsecs
elapsed_time                        9.961504471 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-ffff96d087e50800.read_ahead_stats=clear
llite.lustre-ffff96d087e50800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.48764 seconds
llite.lustre-ffff96d087e50800.read_ahead_stats=
snapshot_time                       1790776431.886204912 secs.nsecs
start_time                          1790776422.490666514 secs.nsecs
elapsed_time                        9.395538398 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-ffff96d087e50800.max_read_ahead_whole_mb=4