== sanity test 248c: verify whole file read behavior ===== 00:20:40 (1769059240)
llite.lustre-ffff8bf405d29000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8bf405d29000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 12.2657 seconds
llite.lustre-ffff8bf405d29000.read_ahead_stats=
snapshot_time             1769059254.397003625 secs.nsecs
start_time                1769059241.462365029 secs.nsecs
elapsed_time              12.934638596 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-ffff8bf405d29000.read_ahead_stats=clear
llite.lustre-ffff8bf405d29000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.57407 seconds
llite.lustre-ffff8bf405d29000.read_ahead_stats=
snapshot_time             1769059264.797230966 secs.nsecs
start_time                1769059254.417059826 secs.nsecs
elapsed_time              10.380171140 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-ffff8bf405d29000.max_read_ahead_whole_mb=4