== sanity test 248c: verify whole file read behavior ===== 08:10:04 (1744027804)
llite.lustre-ffff8800b5c53000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800b5c53000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 32.6 seconds
llite.lustre-ffff8800b5c53000.read_ahead_stats=
snapshot_time             1744027807.216797204 secs.nsecs
start_time                1744027804.936784426 secs.nsecs
elapsed_time              2.280012778 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-ffff8800b5c53000.read_ahead_stats=clear
llite.lustre-ffff8800b5c53000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 30.0 seconds
llite.lustre-ffff8800b5c53000.read_ahead_stats=
snapshot_time             1744027809.879798409 secs.nsecs
start_time                1744027807.221316451 secs.nsecs
elapsed_time              2.658481958 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-ffff8800b5c53000.max_read_ahead_whole_mb=4