== sanity test 248c: verify whole file read behavior ===== 06:30:54 (1747218654)
llite.lustre-ffff8800a9dbd800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800a9dbd800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 32.0 seconds
llite.lustre-ffff8800a9dbd800.read_ahead_stats=
snapshot_time             1747218656.973744009 secs.nsecs
start_time                1747218654.726298000 secs.nsecs
elapsed_time              2.247446009 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-ffff8800a9dbd800.read_ahead_stats=clear
llite.lustre-ffff8800a9dbd800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 31.8 seconds
llite.lustre-ffff8800a9dbd800.read_ahead_stats=
snapshot_time             1747218659.499758893 secs.nsecs
start_time                1747218656.977178719 secs.nsecs
elapsed_time              2.522580174 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-ffff8800a9dbd800.max_read_ahead_whole_mb=4