== sanity test 248c: verify whole file read behavior ===== 12:11:00 (1776874260)
llite.lustre-ffff949a10291800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff949a10291800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.62011 seconds
llite.lustre-ffff949a10291800.read_ahead_stats=
snapshot_time             1776874264.125517997 secs.nsecs
start_time                1776874261.302149592 secs.nsecs
elapsed_time              2.823368405 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-ffff949a10291800.read_ahead_stats=clear
llite.lustre-ffff949a10291800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.92725 seconds
llite.lustre-ffff949a10291800.read_ahead_stats=
snapshot_time             1776874267.665555349 secs.nsecs
start_time                1776874264.131141841 secs.nsecs
elapsed_time              3.534413508 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-ffff949a10291800.max_read_ahead_whole_mb=4