== sanity test 248c: verify whole file read behavior ===== 03:18:37 (1759821517)
llite.lustre-ffff91209946c000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff91209946c000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.25609 seconds
llite.lustre-ffff91209946c000.read_ahead_stats=
snapshot_time             1759821522.810088483 secs.nsecs
start_time                1759821518.359456890 secs.nsecs
elapsed_time              4.450631593 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-ffff91209946c000.read_ahead_stats=clear
llite.lustre-ffff91209946c000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.58136 seconds
llite.lustre-ffff91209946c000.read_ahead_stats=
snapshot_time             1759821528.022130372 secs.nsecs
start_time                1759821522.816962503 secs.nsecs
elapsed_time              5.205167869 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-ffff91209946c000.max_read_ahead_whole_mb=4