== sanity test 248c: verify whole file read behavior ===== 09:04:37 (1789131877)
llite.lustre-ffff9f23103c6000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff9f23103c6000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 10.3637 seconds
llite.lustre-ffff9f23103c6000.read_ahead_stats=
snapshot_time                       1789131890.878767712 secs.nsecs
start_time                          1789131879.611760377 secs.nsecs
elapsed_time                        11.267007335 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-ffff9f23103c6000.read_ahead_stats=clear
llite.lustre-ffff9f23103c6000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.84282 seconds
llite.lustre-ffff9f23103c6000.read_ahead_stats=
snapshot_time                       1789131902.647166785 secs.nsecs
start_time                          1789131890.930035171 secs.nsecs
elapsed_time                        11.717131614 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-ffff9f23103c6000.max_read_ahead_whole_mb=4