== sanity test 248c: verify whole file read behavior ===== 16:35:37 (1760128537)
llite.lustre-ffff9e5b20d22000.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff9e5b20d22000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.2926 seconds
llite.lustre-ffff9e5b20d22000.read_ahead_stats=
snapshot_time             1760128545.592672752 secs.nsecs
start_time                1760128538.875283283 secs.nsecs
elapsed_time              6.717389469 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-ffff9e5b20d22000.read_ahead_stats=clear
llite.lustre-ffff9e5b20d22000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.72708 seconds
llite.lustre-ffff9e5b20d22000.read_ahead_stats=
snapshot_time             1760128552.477357991 secs.nsecs
start_time                1760128545.612311061 secs.nsecs
elapsed_time              6.865046930 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-ffff9e5b20d22000.max_read_ahead_whole_mb=4