== sanity test 248c: verify whole file read behavior ===== 16:49:51 (1768254591)
llite.lustre-ffff8d874333f800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64 /mnt/lustre/d248c.sanity
llite.lustre-ffff8d874333f800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.83708 seconds
llite.lustre-ffff8d874333f800.read_ahead_stats=
snapshot_time             1768254599.925503303 secs.nsecs
start_time                1768254592.687650864 secs.nsecs
elapsed_time              7.237852439 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-ffff8d874333f800.read_ahead_stats=clear
llite.lustre-ffff8d874333f800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.78802 seconds
llite.lustre-ffff8d874333f800.read_ahead_stats=
snapshot_time             1768254607.238371355 secs.nsecs
start_time                1768254599.936202323 secs.nsecs
elapsed_time              7.302169032 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-ffff8d874333f800.max_read_ahead_whole_mb=4