== sanity test 248c: verify whole file read behavior ===== 17:11:04 (1788729064)
llite.lustre-ffff8ee5d32f9000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff8ee5d32f9000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 4.25 seconds
llite.lustre-ffff8ee5d32f9000.read_ahead_stats=
snapshot_time                       1788729069.768500681 secs.nsecs
start_time                          1788729065.159152378 secs.nsecs
elapsed_time                        4.609348303 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-ffff8ee5d32f9000.read_ahead_stats=clear
llite.lustre-ffff8ee5d32f9000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.43856 seconds
llite.lustre-ffff8ee5d32f9000.read_ahead_stats=
snapshot_time                       1788729075.641641584 secs.nsecs
start_time                          1788729069.777542031 secs.nsecs
elapsed_time                        5.864099553 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-ffff8ee5d32f9000.max_read_ahead_whole_mb=4