== sanity test 248c: verify whole file read behavior ===== 14:32:32 (1767727952)
llite.lustre-ffff945e720fc800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff945e720fc800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.83978 seconds
llite.lustre-ffff945e720fc800.read_ahead_stats=
snapshot_time             1767727957.410833237 secs.nsecs
start_time                1767727953.338438550 secs.nsecs
elapsed_time              4.072394687 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-ffff945e720fc800.read_ahead_stats=clear
llite.lustre-ffff945e720fc800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.75268 seconds
llite.lustre-ffff945e720fc800.read_ahead_stats=
snapshot_time             1767727961.891540642 secs.nsecs
start_time                1767727957.417491834 secs.nsecs
elapsed_time              4.474048808 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-ffff945e720fc800.max_read_ahead_whole_mb=4