== sanity test 248c: verify whole file read behavior ===== 06:12:21 (1762168341)
llite.lustre-ffff8acb83f5e000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff8acb83f5e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.42024 seconds
llite.lustre-ffff8acb83f5e000.read_ahead_stats=
snapshot_time             1762168347.408774111 secs.nsecs
start_time                1762168342.653653777 secs.nsecs
elapsed_time              4.755120334 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-ffff8acb83f5e000.read_ahead_stats=clear
llite.lustre-ffff8acb83f5e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.50198 seconds
llite.lustre-ffff8acb83f5e000.read_ahead_stats=
snapshot_time             1762168352.717462217 secs.nsecs
start_time                1762168347.418780317 secs.nsecs
elapsed_time              5.298681900 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-ffff8acb83f5e000.max_read_ahead_whole_mb=4