== sanity test 248c: verify whole file read behavior ===== 22:40:19 (1775875219)
llite.lustre-ffff8e02d8fba000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8e02d8fba000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.87178 seconds
llite.lustre-ffff8e02d8fba000.read_ahead_stats=
snapshot_time             1775875224.653843781 secs.nsecs
start_time                1775875220.339373907 secs.nsecs
elapsed_time              4.314469874 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-ffff8e02d8fba000.read_ahead_stats=clear
llite.lustre-ffff8e02d8fba000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.49185 seconds
llite.lustre-ffff8e02d8fba000.read_ahead_stats=
snapshot_time             1775875229.306518526 secs.nsecs
start_time                1775875224.673062557 secs.nsecs
elapsed_time              4.633455969 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-ffff8e02d8fba000.max_read_ahead_whole_mb=4