== sanity test 248c: verify whole file read behavior ===== 03:22:05 (1753428125)
llite.lustre-ffff948404fd1800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff948404fd1800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.78107 seconds
llite.lustre-ffff948404fd1800.read_ahead_stats=
snapshot_time             1753428130.428185342 secs.nsecs
start_time                1753428126.407930978 secs.nsecs
elapsed_time              4.020254364 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-ffff948404fd1800.read_ahead_stats=clear
llite.lustre-ffff948404fd1800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.84472 seconds
llite.lustre-ffff948404fd1800.read_ahead_stats=
snapshot_time             1753428134.904285994 secs.nsecs
start_time                1753428130.434250597 secs.nsecs
elapsed_time              4.470035397 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-ffff948404fd1800.max_read_ahead_whole_mb=4