== sanity test 248c: verify whole file read behavior ===== 17:06:07 (1764108367)
llite.lustre-ffff89dc02fa4800.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff89dc02fa4800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.64613 seconds
llite.lustre-ffff89dc02fa4800.read_ahead_stats=
snapshot_time             1764108373.877649869 secs.nsecs
start_time                1764108368.935426943 secs.nsecs
elapsed_time              4.942222926 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-ffff89dc02fa4800.read_ahead_stats=clear
llite.lustre-ffff89dc02fa4800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.30966 seconds
llite.lustre-ffff89dc02fa4800.read_ahead_stats=
snapshot_time             1764108380.029572456 secs.nsecs
start_time                1764108373.885652630 secs.nsecs
elapsed_time              6.143919826 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-ffff89dc02fa4800.max_read_ahead_whole_mb=4