== sanity test 248c: verify whole file read behavior ===== 10:19:15 (1743517155)
llite.lustre-ffff8f52c8249000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8f52c8249000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.59848 seconds
llite.lustre-ffff8f52c8249000.read_ahead_stats=
snapshot_time             1743517164.137847012 secs.nsecs
start_time                1743517157.872454886 secs.nsecs
elapsed_time              6.265392126 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-ffff8f52c8249000.read_ahead_stats=clear
llite.lustre-ffff8f52c8249000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.70333 seconds
llite.lustre-ffff8f52c8249000.read_ahead_stats=
snapshot_time             1743517170.928987941 secs.nsecs
start_time                1743517164.162462411 secs.nsecs
elapsed_time              6.766525530 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-ffff8f52c8249000.max_read_ahead_whole_mb=4