== sanity test 248c: verify whole file read behavior ===== 01:29:50 (1746077390)
llite.lustre-ffff8800a83bc800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800a83bc800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 17.0 seconds
llite.lustre-ffff8800a83bc800.read_ahead_stats=
snapshot_time             1746077395.466921790 secs.nsecs
start_time                1746077391.165737608 secs.nsecs
elapsed_time              4.301184182 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-ffff8800a83bc800.read_ahead_stats=clear
llite.lustre-ffff8800a83bc800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 17.2 seconds
llite.lustre-ffff8800a83bc800.read_ahead_stats=
snapshot_time             1746077400.200504041 secs.nsecs
start_time                1746077395.475252870 secs.nsecs
elapsed_time              4.725251171 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-ffff8800a83bc800.max_read_ahead_whole_mb=4