== sanity test 248c: verify whole file read behavior ===== 20:36:49 (1777423009)
llite.lustre-ffff9a9045064800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff9a9045064800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.68712 seconds
llite.lustre-ffff9a9045064800.read_ahead_stats=
snapshot_time             1777423015.086924935 secs.nsecs
start_time                1777423010.205858958 secs.nsecs
elapsed_time              4.881065977 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-ffff9a9045064800.read_ahead_stats=clear
llite.lustre-ffff9a9045064800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.53511 seconds
llite.lustre-ffff9a9045064800.read_ahead_stats=
snapshot_time             1777423020.248913089 secs.nsecs
start_time                1777423015.093570261 secs.nsecs
elapsed_time              5.155342828 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-ffff9a9045064800.max_read_ahead_whole_mb=4