== sanity test 248c: verify whole file read behavior ===== 04:10:19 (1785399019)
llite.lustre-ffff922ff12fc000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff922ff12fc000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.63354 seconds
llite.lustre-ffff922ff12fc000.read_ahead_stats=
snapshot_time                       1785399030.863272768 secs.nsecs
start_time                          1785399021.382449070 secs.nsecs
elapsed_time                        9.480823698 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-ffff922ff12fc000.read_ahead_stats=clear
llite.lustre-ffff922ff12fc000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 10.1296 seconds
llite.lustre-ffff922ff12fc000.read_ahead_stats=
snapshot_time                       1785399043.696536845 secs.nsecs
start_time                          1785399030.875404793 secs.nsecs
elapsed_time                        12.821132052 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-ffff922ff12fc000.max_read_ahead_whole_mb=4