== sanity test 248c: verify whole file read behavior ===== 06:47:58 (1769082478)
llite.lustre-ffff97263849b800.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff97263849b800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.1249 seconds
llite.lustre-ffff97263849b800.read_ahead_stats=
snapshot_time             1769082483.523743537 secs.nsecs
start_time                1769082479.080419468 secs.nsecs
elapsed_time              4.443324069 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-ffff97263849b800.read_ahead_stats=clear
llite.lustre-ffff97263849b800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.06579 seconds
llite.lustre-ffff97263849b800.read_ahead_stats=
snapshot_time             1769082488.346591362 secs.nsecs
start_time                1769082483.538890544 secs.nsecs
elapsed_time              4.807700818 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-ffff97263849b800.max_read_ahead_whole_mb=4