== sanity test 248c: verify whole file read behavior ===== 23:20:13 (1790738413)
llite.lustre-ffff89d590611800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff89d590611800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.81238 seconds
llite.lustre-ffff89d590611800.read_ahead_stats=
snapshot_time                       1790738422.774064566 secs.nsecs
start_time                          1790738415.982084638 secs.nsecs
elapsed_time                        6.791979928 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-ffff89d590611800.read_ahead_stats=clear
llite.lustre-ffff89d590611800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.43578 seconds
llite.lustre-ffff89d590611800.read_ahead_stats=
snapshot_time                       1790738429.919700932 secs.nsecs
start_time                          1790738422.815071428 secs.nsecs
elapsed_time                        7.104629504 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-ffff89d590611800.max_read_ahead_whole_mb=4