== sanity test 248c: verify whole file read behavior ===== 11:43:21 (1787845401)
llite.lustre-ffff968648b92800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff968648b92800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.90453 seconds
llite.lustre-ffff968648b92800.read_ahead_stats=
snapshot_time                       1787845413.387281224 secs.nsecs
start_time                          1787845403.645876906 secs.nsecs
elapsed_time                        9.741404318 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-ffff968648b92800.read_ahead_stats=clear
llite.lustre-ffff968648b92800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.32848 seconds
llite.lustre-ffff968648b92800.read_ahead_stats=
snapshot_time                       1787845424.061261824 secs.nsecs
start_time                          1787845413.414092474 secs.nsecs
elapsed_time                        10.647169350 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-ffff968648b92800.max_read_ahead_whole_mb=4