== sanity test 248c: verify whole file read behavior ===== 08:02:55 (1775044975)
llite.lustre-ffff949987d3e800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff949987d3e800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 2.76803 seconds
llite.lustre-ffff949987d3e800.read_ahead_stats=
snapshot_time             1775044979.150565450 secs.nsecs
start_time                1775044976.138768678 secs.nsecs
elapsed_time              3.011796772 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-ffff949987d3e800.read_ahead_stats=clear
llite.lustre-ffff949987d3e800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 2.86967 seconds
llite.lustre-ffff949987d3e800.read_ahead_stats=
snapshot_time             1775044982.726337906 secs.nsecs
start_time                1775044979.157637626 secs.nsecs
elapsed_time              3.568700280 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-ffff949987d3e800.max_read_ahead_whole_mb=4