== sanity test 248c: verify whole file read behavior ===== 14:03:46 (1788285826)
llite.lustre-ffffa0a560e23000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffffa0a560e23000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.39071 seconds
llite.lustre-ffffa0a560e23000.read_ahead_stats=
snapshot_time                       1788285837.568011227 secs.nsecs
start_time                          1788285828.521526262 secs.nsecs
elapsed_time                        9.046484965 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-ffffa0a560e23000.read_ahead_stats=clear
llite.lustre-ffffa0a560e23000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 10.5386 seconds
llite.lustre-ffffa0a560e23000.read_ahead_stats=
snapshot_time                       1788285850.923490260 secs.nsecs
start_time                          1788285837.586595853 secs.nsecs
elapsed_time                        13.336894407 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-ffffa0a560e23000.max_read_ahead_whole_mb=4