== sanity test 248c: verify whole file read behavior ===== 04:24:48 (1789028688)
llite.lustre-ffff97d888658800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff97d888658800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.10811 seconds
llite.lustre-ffff97d888658800.read_ahead_stats=
snapshot_time                       1789028698.171283485 secs.nsecs
start_time                          1789028690.263582862 secs.nsecs
elapsed_time                        7.907700623 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-ffff97d888658800.read_ahead_stats=clear
llite.lustre-ffff97d888658800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.73067 seconds
llite.lustre-ffff97d888658800.read_ahead_stats=
snapshot_time                       1789028706.710631348 secs.nsecs
start_time                          1789028698.185610124 secs.nsecs
elapsed_time                        8.525021224 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-ffff97d888658800.max_read_ahead_whole_mb=4