== sanity test 248c: verify whole file read behavior ===== 15:46:04 (1734122764)
llite.lustre-ffff8800930b8800.read_ahead_stats=c
striped dir -i0 -c2 -H crush /mnt/lustre/d248c.sanity
llite.lustre-ffff8800930b8800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 32.8 seconds
llite.lustre-ffff8800930b8800.read_ahead_stats=
snapshot_time             1734122767.551796997 secs.nsecs
start_time                1734122765.292688561 secs.nsecs
elapsed_time              2.259108436 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-ffff8800930b8800.read_ahead_stats=clear
llite.lustre-ffff8800930b8800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 33.5 seconds
llite.lustre-ffff8800930b8800.read_ahead_stats=
snapshot_time             1734122769.958787671 secs.nsecs
start_time                1734122767.555802255 secs.nsecs
elapsed_time              2.402985416 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-ffff8800930b8800.max_read_ahead_whole_mb=64