== sanity test 248c: verify whole file read behavior ===== 06:44:14 (1773657854)
llite.lustre-ffffa03382e9c000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffffa03382e9c000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.69722 seconds
llite.lustre-ffffa03382e9c000.read_ahead_stats=
snapshot_time             1773657862.110021799 secs.nsecs
start_time                1773657855.887671181 secs.nsecs
elapsed_time              6.222350618 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-ffffa03382e9c000.read_ahead_stats=clear
llite.lustre-ffffa03382e9c000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.08698 seconds
llite.lustre-ffffa03382e9c000.read_ahead_stats=
snapshot_time             1773657870.340340996 secs.nsecs
start_time                1773657862.134289902 secs.nsecs
elapsed_time              8.206051094 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-ffffa03382e9c000.max_read_ahead_whole_mb=4