== sanity test 248c: verify whole file read behavior ===== 09:50:55 (1787579455)
llite.lustre-ffff9259c9805000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff9259c9805000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.19416 seconds
llite.lustre-ffff9259c9805000.read_ahead_stats=
snapshot_time                       1787579464.971148946 secs.nsecs
start_time                          1787579457.896853130 secs.nsecs
elapsed_time                        7.074295816 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-ffff9259c9805000.read_ahead_stats=clear
llite.lustre-ffff9259c9805000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.76239 seconds
llite.lustre-ffff9259c9805000.read_ahead_stats=
snapshot_time                       1787579471.910820366 secs.nsecs
start_time                          1787579465.030556006 secs.nsecs
elapsed_time                        6.880264360 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-ffff9259c9805000.max_read_ahead_whole_mb=4