== sanity test 248c: verify whole file read behavior ===== 05:26:20 (1727774780)
llite.lustre-ffff88008b959000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff88008b959000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 32.0 seconds
llite.lustre-ffff88008b959000.read_ahead_stats=
snapshot_time             1727774783.374279532 secs.nsecs
start_time                1727774781.150028239 secs.nsecs
elapsed_time              2.224251293 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-ffff88008b959000.read_ahead_stats=clear
llite.lustre-ffff88008b959000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 27.9 seconds
llite.lustre-ffff88008b959000.read_ahead_stats=
snapshot_time             1727774786.187517063 secs.nsecs
start_time                1727774783.377598322 secs.nsecs
elapsed_time              2.809918741 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-ffff88008b959000.max_read_ahead_whole_mb=64