== sanity test 248c: verify whole file read behavior ===== 18:11:11 (1786831871)
llite.lustre-ffff8a8783889000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8a8783889000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.2996 seconds
llite.lustre-ffff8a8783889000.read_ahead_stats=
snapshot_time                       1786831883.268926557 secs.nsecs
start_time                          1786831874.195739028 secs.nsecs
elapsed_time                        9.073187529 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-ffff8a8783889000.read_ahead_stats=clear
llite.lustre-ffff8a8783889000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.63755 seconds
llite.lustre-ffff8a8783889000.read_ahead_stats=
snapshot_time                       1786831892.114404989 secs.nsecs
start_time                          1786831883.299284842 secs.nsecs
elapsed_time                        8.815120147 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-ffff8a8783889000.max_read_ahead_whole_mb=4