== sanity test 248c: verify whole file read behavior ===== 21:11:45 (1767319905)
llite.lustre-ffff9eb348786000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff9eb348786000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.6465 seconds
llite.lustre-ffff9eb348786000.read_ahead_stats=
snapshot_time             1767319914.136353558 secs.nsecs
start_time                1767319906.954545927 secs.nsecs
elapsed_time              7.181807631 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-ffff9eb348786000.read_ahead_stats=clear
llite.lustre-ffff9eb348786000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.61601 seconds
llite.lustre-ffff9eb348786000.read_ahead_stats=
snapshot_time             1767319924.216257452 secs.nsecs
start_time                1767319914.159717051 secs.nsecs
elapsed_time              10.056540401 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-ffff9eb348786000.max_read_ahead_whole_mb=4