== sanity test 248c: verify whole file read behavior ===== 15:37:11 (1733171831)
llite.lustre-ffff88012c118000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff88012c118000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 28.2 seconds
llite.lustre-ffff88012c118000.read_ahead_stats=
snapshot_time             1733171834.425647725 secs.nsecs
start_time                1733171831.919060383 secs.nsecs
elapsed_time              2.506587342 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-ffff88012c118000.read_ahead_stats=clear
llite.lustre-ffff88012c118000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 23.6 seconds
llite.lustre-ffff88012c118000.read_ahead_stats=
snapshot_time             1733171837.791338205 secs.nsecs
start_time                1733171834.428966805 secs.nsecs
elapsed_time              3.362371400 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-ffff88012c118000.max_read_ahead_whole_mb=64