== sanity test 248c: verify whole file read behavior ===== 23:30:48 (1789443048)
llite.lustre-ffff997e4ff47800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff997e4ff47800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.83797 seconds
llite.lustre-ffff997e4ff47800.read_ahead_stats=
snapshot_time                       1789443058.422052823 secs.nsecs
start_time                          1789443051.015410069 secs.nsecs
elapsed_time                        7.406642754 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-ffff997e4ff47800.read_ahead_stats=clear
llite.lustre-ffff997e4ff47800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.47124 seconds
llite.lustre-ffff997e4ff47800.read_ahead_stats=
snapshot_time                       1789443066.770914094 secs.nsecs
start_time                          1789443058.440962799 secs.nsecs
elapsed_time                        8.329951295 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-ffff997e4ff47800.max_read_ahead_whole_mb=4