== sanity test 248c: verify whole file read behavior ===== 02:45:52 (1746168352)
llite.lustre-ffff8800b60ff800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8800b60ff800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 28.3 seconds
llite.lustre-ffff8800b60ff800.read_ahead_stats=
snapshot_time             1746168355.343600611 secs.nsecs
start_time                1746168352.826126943 secs.nsecs
elapsed_time              2.517473668 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-ffff8800b60ff800.read_ahead_stats=clear
llite.lustre-ffff8800b60ff800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 26.7 seconds
llite.lustre-ffff8800b60ff800.read_ahead_stats=
snapshot_time             1746168358.334496790 secs.nsecs
start_time                1746168355.347791493 secs.nsecs
elapsed_time              2.986705297 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-ffff8800b60ff800.max_read_ahead_whole_mb=4