== sanity test 248c: verify whole file read behavior ===== 13:31:51 (1780335111)
llite.lustre-ffff97ae59430800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff97ae59430800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.42245 seconds
llite.lustre-ffff97ae59430800.read_ahead_stats=
snapshot_time             1780335119.001368725 secs.nsecs
start_time                1780335112.919253054 secs.nsecs
elapsed_time              6.082115671 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-ffff97ae59430800.read_ahead_stats=clear
llite.lustre-ffff97ae59430800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 6.18921 seconds
llite.lustre-ffff97ae59430800.read_ahead_stats=
snapshot_time             1780335126.597193659 secs.nsecs
start_time                1780335119.016791439 secs.nsecs
elapsed_time              7.580402220 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-ffff97ae59430800.max_read_ahead_whole_mb=4