== sanity test 248c: verify whole file read behavior ===== 11:08:31 (1786979311)
llite.lustre-ffff8f4fd3d60800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8f4fd3d60800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 10.1487 seconds
llite.lustre-ffff8f4fd3d60800.read_ahead_stats=
snapshot_time                       1786979325.919278382 secs.nsecs
start_time                          1786979314.807278707 secs.nsecs
elapsed_time                        11.111999675 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-ffff8f4fd3d60800.read_ahead_stats=clear
llite.lustre-ffff8f4fd3d60800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.75275 seconds
llite.lustre-ffff8f4fd3d60800.read_ahead_stats=
snapshot_time                       1786979336.227064612 secs.nsecs
start_time                          1786979325.941366100 secs.nsecs
elapsed_time                        10.285698512 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-ffff8f4fd3d60800.max_read_ahead_whole_mb=4