== sanity test 248c: verify whole file read behavior ===== 19:23:25 (1755041005)
llite.lustre-ffff898b104bf000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff898b104bf000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.5773 seconds
llite.lustre-ffff898b104bf000.read_ahead_stats=
snapshot_time             1755041009.620973095 secs.nsecs
start_time                1755041005.865721879 secs.nsecs
elapsed_time              3.755251216 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-ffff898b104bf000.read_ahead_stats=clear
llite.lustre-ffff898b104bf000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.33865 seconds
llite.lustre-ffff898b104bf000.read_ahead_stats=
snapshot_time             1755041014.486766193 secs.nsecs
start_time                1755041009.627101145 secs.nsecs
elapsed_time              4.859665048 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-ffff898b104bf000.max_read_ahead_whole_mb=4