== sanity test 248c: verify whole file read behavior ===== 21:20:46 (1784942446)
llite.lustre-ffff8bcec1344800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8bcec1344800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.90046 seconds
llite.lustre-ffff8bcec1344800.read_ahead_stats=
snapshot_time                       1784942453.476216850 secs.nsecs
start_time                          1784942448.059242974 secs.nsecs
elapsed_time                        5.416973876 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-ffff8bcec1344800.read_ahead_stats=clear
llite.lustre-ffff8bcec1344800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.37489 seconds
llite.lustre-ffff8bcec1344800.read_ahead_stats=
snapshot_time                       1784942459.316547762 secs.nsecs
start_time                          1784942453.488313893 secs.nsecs
elapsed_time                        5.828233869 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-ffff8bcec1344800.max_read_ahead_whole_mb=4