== sanity test 248c: verify whole file read behavior ===== 13:45:27 (1785951927)
llite.lustre-ffff99e46130b000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff99e46130b000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 13.1921 seconds
llite.lustre-ffff99e46130b000.read_ahead_stats=
snapshot_time                       1785951944.610337529 secs.nsecs
start_time                          1785951930.594292355 secs.nsecs
elapsed_time                        14.016045174 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-ffff99e46130b000.read_ahead_stats=clear
llite.lustre-ffff99e46130b000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 10.1319 seconds
llite.lustre-ffff99e46130b000.read_ahead_stats=
snapshot_time                       1785951959.287438842 secs.nsecs
start_time                          1785951944.632961207 secs.nsecs
elapsed_time                        14.654477635 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-ffff99e46130b000.max_read_ahead_whole_mb=4