== sanity test 248c: verify whole file read behavior ===== 04:32:20 (1734687140)
llite.lustre-ffff880137322000.read_ahead_stats=c
striped dir -i0 -c2 -H all_char /mnt/lustre/d248c.sanity
llite.lustre-ffff880137322000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 24.9 seconds
llite.lustre-ffff880137322000.read_ahead_stats=
snapshot_time             1734687144.301766620 secs.nsecs
start_time                1734687141.403155517 secs.nsecs
elapsed_time              2.898611103 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-ffff880137322000.read_ahead_stats=clear
llite.lustre-ffff880137322000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 25.8 seconds
llite.lustre-ffff880137322000.read_ahead_stats=
snapshot_time             1734687147.475269202 secs.nsecs
start_time                1734687144.307566813 secs.nsecs
elapsed_time              3.167702389 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-ffff880137322000.max_read_ahead_whole_mb=64