== sanity test 248c: verify whole file read behavior ===== 08:51:41 (1748868701)
llite.lustre-ffff88012a611000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff88012a611000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 25.0 seconds
llite.lustre-ffff88012a611000.read_ahead_stats=
snapshot_time             1748868704.769598099 secs.nsecs
start_time                1748868701.920303894 secs.nsecs
elapsed_time              2.849294205 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-ffff88012a611000.read_ahead_stats=clear
llite.lustre-ffff88012a611000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 26.3 seconds
llite.lustre-ffff88012a611000.read_ahead_stats=
snapshot_time             1748868707.822576410 secs.nsecs
start_time                1748868704.773245069 secs.nsecs
elapsed_time              3.049331341 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-ffff88012a611000.max_read_ahead_whole_mb=4