== sanity test 248c: verify whole file read behavior ===== 07:17:01 (1788779821)
llite.lustre-ffff8975d14da800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8975d14da800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.75297 seconds
llite.lustre-ffff8975d14da800.read_ahead_stats=
snapshot_time                       1788779829.853423988 secs.nsecs
start_time                          1788779823.468066841 secs.nsecs
elapsed_time                        6.385357147 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-ffff8975d14da800.read_ahead_stats=clear
llite.lustre-ffff8975d14da800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.49452 seconds
llite.lustre-ffff8975d14da800.read_ahead_stats=
snapshot_time                       1788779837.964820432 secs.nsecs
start_time                          1788779829.871652493 secs.nsecs
elapsed_time                        8.093167939 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-ffff8975d14da800.max_read_ahead_whole_mb=4