== sanity test 248c: verify whole file read behavior ===== 20:49:58 (1770688198)
llite.lustre-ffff915eb5302800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff915eb5302800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.02452 seconds
llite.lustre-ffff915eb5302800.read_ahead_stats=
snapshot_time             1770688203.195964080 secs.nsecs
start_time                1770688198.930808029 secs.nsecs
elapsed_time              4.265156051 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-ffff915eb5302800.read_ahead_stats=clear
llite.lustre-ffff915eb5302800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.1403 seconds
llite.lustre-ffff915eb5302800.read_ahead_stats=
snapshot_time             1770688208.050160469 secs.nsecs
start_time                1770688203.202416163 secs.nsecs
elapsed_time              4.847744306 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-ffff915eb5302800.max_read_ahead_whole_mb=4