== sanity test 248c: verify whole file read behavior ===== 03:06:15 (1768550775)
llite.lustre-ffff92454bafe000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff92454bafe000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 11.2558 seconds
llite.lustre-ffff92454bafe000.read_ahead_stats=
snapshot_time             1768550789.303618858 secs.nsecs
start_time                1768550777.459328258 secs.nsecs
elapsed_time              11.844290600 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-ffff92454bafe000.read_ahead_stats=clear
llite.lustre-ffff92454bafe000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.75715 seconds
llite.lustre-ffff92454bafe000.read_ahead_stats=
snapshot_time             1768550801.008739117 secs.nsecs
start_time                1768550789.345267751 secs.nsecs
elapsed_time              11.663471366 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-ffff92454bafe000.max_read_ahead_whole_mb=4