== sanity test 248c: verify whole file read behavior ===== 10:40:06 (1724769606)
llite.lustre-ffff88013732d800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff88013732d800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 32.8 seconds
llite.lustre-ffff88013732d800.read_ahead_stats=
snapshot_time             1724769609.081427076 secs.nsecs
start_time                1724769606.914063255 secs.nsecs
elapsed_time              2.167363821 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-ffff88013732d800.read_ahead_stats=clear
llite.lustre-ffff88013732d800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 31.9 seconds
llite.lustre-ffff88013732d800.read_ahead_stats=
snapshot_time             1724769611.582775233 secs.nsecs
start_time                1724769609.084542596 secs.nsecs
elapsed_time              2.498232637 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-ffff88013732d800.max_read_ahead_whole_mb=64