== sanity test 248c: verify whole file read behavior ===== 07:28:38 (1789126118)
llite.lustre-ffff897b91596800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff897b91596800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.28667 seconds
llite.lustre-ffff897b91596800.read_ahead_stats=
snapshot_time                       1789126128.164082873 secs.nsecs
start_time                          1789126120.078195121 secs.nsecs
elapsed_time                        8.085887752 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-ffff897b91596800.read_ahead_stats=clear
llite.lustre-ffff897b91596800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.71783 seconds
llite.lustre-ffff897b91596800.read_ahead_stats=
snapshot_time                       1789126137.832349758 secs.nsecs
start_time                          1789126128.184714068 secs.nsecs
elapsed_time                        9.647635690 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-ffff897b91596800.max_read_ahead_whole_mb=4