== sanity test 248c: verify whole file read behavior ===== 03:29:44 (1788334184)
llite.lustre-ffff8a7285ebb800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff8a7285ebb800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.90281 seconds
llite.lustre-ffff8a7285ebb800.read_ahead_stats=
snapshot_time                       1788334194.206725123 secs.nsecs
start_time                          1788334186.619418075 secs.nsecs
elapsed_time                        7.587307048 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-ffff8a7285ebb800.read_ahead_stats=clear
llite.lustre-ffff8a7285ebb800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.91072 seconds
llite.lustre-ffff8a7285ebb800.read_ahead_stats=
snapshot_time                       1788334203.909793421 secs.nsecs
start_time                          1788334194.227675034 secs.nsecs
elapsed_time                        9.682118387 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-ffff8a7285ebb800.max_read_ahead_whole_mb=4