== sanity test 248c: verify whole file read behavior ===== 15:29:26 (1726860566)
llite.lustre-ffff8800b61a3800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800b61a3800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 36.2 seconds
llite.lustre-ffff8800b61a3800.read_ahead_stats=
snapshot_time             1726860568.979537243 secs.nsecs
start_time                1726860566.887859752 secs.nsecs
elapsed_time              2.091677491 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-ffff8800b61a3800.read_ahead_stats=clear
llite.lustre-ffff8800b61a3800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 35.3 seconds
llite.lustre-ffff8800b61a3800.read_ahead_stats=
snapshot_time             1726860571.256355298 secs.nsecs
start_time                1726860568.982931446 secs.nsecs
elapsed_time              2.273423852 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-ffff8800b61a3800.max_read_ahead_whole_mb=64