== sanity test 248c: verify whole file read behavior ===== 14:36:39 (1780338999)
llite.lustre-ffff93de986f2000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff93de986f2000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.23304 seconds
llite.lustre-ffff93de986f2000.read_ahead_stats=
snapshot_time             1780339006.518602228 secs.nsecs
start_time                1780339001.693530546 secs.nsecs
elapsed_time              4.825071682 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-ffff93de986f2000.read_ahead_stats=clear
llite.lustre-ffff93de986f2000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.15826 seconds
llite.lustre-ffff93de986f2000.read_ahead_stats=
snapshot_time             1780339014.019151787 secs.nsecs
start_time                1780339006.531800641 secs.nsecs
elapsed_time              7.487351146 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-ffff93de986f2000.max_read_ahead_whole_mb=4