== sanity test 248c: verify whole file read behavior ===== 13:21:03 (1788974463)
llite.lustre-ffff9844727a2800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff9844727a2800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.4956 seconds
llite.lustre-ffff9844727a2800.read_ahead_stats=
snapshot_time                       1788974470.163268808 secs.nsecs
start_time                          1788974464.994266636 secs.nsecs
elapsed_time                        5.169002172 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-ffff9844727a2800.read_ahead_stats=clear
llite.lustre-ffff9844727a2800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.07142 seconds
llite.lustre-ffff9844727a2800.read_ahead_stats=
snapshot_time                       1788974476.781076341 secs.nsecs
start_time                          1788974470.190778183 secs.nsecs
elapsed_time                        6.590298158 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-ffff9844727a2800.max_read_ahead_whole_mb=4