== sanity test 248c: verify whole file read behavior ===== 22:27:31 (1733801251)
llite.lustre-ffff88012a4bd800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff88012a4bd800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 37.1 seconds
llite.lustre-ffff88012a4bd800.read_ahead_stats=
snapshot_time             1733801254.368741925 secs.nsecs
start_time                1733801252.381342831 secs.nsecs
elapsed_time              1.987399094 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-ffff88012a4bd800.read_ahead_stats=clear
llite.lustre-ffff88012a4bd800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 35.4 seconds
llite.lustre-ffff88012a4bd800.read_ahead_stats=
snapshot_time             1733801256.680466564 secs.nsecs
start_time                1733801254.374460954 secs.nsecs
elapsed_time              2.306005610 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-ffff88012a4bd800.max_read_ahead_whole_mb=64