== sanity test 248c: verify whole file read behavior ===== 19:53:25 (1763340805)
llite.lustre-ffff9093c9e53000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff9093c9e53000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.54535 seconds
llite.lustre-ffff9093c9e53000.read_ahead_stats=
snapshot_time             1763340814.253856687 secs.nsecs
start_time                1763340807.154583808 secs.nsecs
elapsed_time              7.099272879 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-ffff9093c9e53000.read_ahead_stats=clear
llite.lustre-ffff9093c9e53000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.38482 seconds
llite.lustre-ffff9093c9e53000.read_ahead_stats=
snapshot_time             1763340821.879045918 secs.nsecs
start_time                1763340814.263638109 secs.nsecs
elapsed_time              7.615407809 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-ffff9093c9e53000.max_read_ahead_whole_mb=4