== sanity test 248c: verify whole file read behavior ===== 21:50:57 (1749606657)
llite.lustre-ffff8800b3ba1800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800b3ba1800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 34.6 seconds
llite.lustre-ffff8800b3ba1800.read_ahead_stats=
snapshot_time             1749606660.493282190 secs.nsecs
start_time                1749606658.354715909 secs.nsecs
elapsed_time              2.138566281 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-ffff8800b3ba1800.read_ahead_stats=clear
llite.lustre-ffff8800b3ba1800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 34.9 seconds
llite.lustre-ffff8800b3ba1800.read_ahead_stats=
snapshot_time             1749606662.832104860 secs.nsecs
start_time                1749606660.498654844 secs.nsecs
elapsed_time              2.333450016 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-ffff8800b3ba1800.max_read_ahead_whole_mb=4