== sanity test 248c: verify whole file read behavior ===== 19:38:04 (1788910684)
llite.lustre-ffff8cc489ff4800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8cc489ff4800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.48189 seconds
llite.lustre-ffff8cc489ff4800.read_ahead_stats=
snapshot_time                       1788910688.708358871 secs.nsecs
start_time                          1788910684.949484405 secs.nsecs
elapsed_time                        3.758874466 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-ffff8cc489ff4800.read_ahead_stats=clear
llite.lustre-ffff8cc489ff4800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.70607 seconds
llite.lustre-ffff8cc489ff4800.read_ahead_stats=
snapshot_time                       1788910693.253282293 secs.nsecs
start_time                          1788910688.718130687 secs.nsecs
elapsed_time                        4.535151606 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-ffff8cc489ff4800.max_read_ahead_whole_mb=4