== sanity test 248c: verify whole file read behavior ===== 09:51:17 (1783950677)
llite.lustre-ffff92e842d3a000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff92e842d3a000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.91865 seconds
llite.lustre-ffff92e842d3a000.read_ahead_stats=
snapshot_time                       1783950686.080277840 secs.nsecs
start_time                          1783950678.633031649 secs.nsecs
elapsed_time                        7.447246191 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-ffff92e842d3a000.read_ahead_stats=clear
llite.lustre-ffff92e842d3a000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.26962 seconds
llite.lustre-ffff92e842d3a000.read_ahead_stats=
snapshot_time                       1783950695.433511390 secs.nsecs
start_time                          1783950686.100239689 secs.nsecs
elapsed_time                        9.333271701 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-ffff92e842d3a000.max_read_ahead_whole_mb=4