== sanity test 248c: verify whole file read behavior ===== 18:35:48 (1763336148)
llite.lustre-ffff98f0464e6800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2 /mnt/lustre/d248c.sanity
llite.lustre-ffff98f0464e6800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 5.93538 seconds
llite.lustre-ffff98f0464e6800.read_ahead_stats=
snapshot_time             1763336155.959062961 secs.nsecs
start_time                1763336149.562656950 secs.nsecs
elapsed_time              6.396406011 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-ffff98f0464e6800.read_ahead_stats=clear
llite.lustre-ffff98f0464e6800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.46734 seconds
llite.lustre-ffff98f0464e6800.read_ahead_stats=
snapshot_time             1763336162.454187429 secs.nsecs
start_time                1763336155.972940868 secs.nsecs
elapsed_time              6.481246561 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-ffff98f0464e6800.max_read_ahead_whole_mb=4