== sanity test 248c: verify whole file read behavior ===== 12:11:36 (1788538296)
llite.lustre-ffff9d7ec9040800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9d7ec9040800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.37018 seconds
llite.lustre-ffff9d7ec9040800.read_ahead_stats=
snapshot_time                       1788538306.141147062 secs.nsecs
start_time                          1788538298.041673436 secs.nsecs
elapsed_time                        8.099473626 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-ffff9d7ec9040800.read_ahead_stats=clear
llite.lustre-ffff9d7ec9040800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.02599 seconds
llite.lustre-ffff9d7ec9040800.read_ahead_stats=
snapshot_time                       1788538313.721183196 secs.nsecs
start_time                          1788538306.165748213 secs.nsecs
elapsed_time                        7.555434983 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-ffff9d7ec9040800.max_read_ahead_whole_mb=4