== sanity test 248c: verify whole file read behavior ===== 06:12:03 (1790676723)
llite.lustre-ffff89e9612da800.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff89e9612da800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.32531 seconds
llite.lustre-ffff89e9612da800.read_ahead_stats=
snapshot_time                       1790676732.101845683 secs.nsecs
start_time                          1790676725.161223157 secs.nsecs
elapsed_time                        6.940622526 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-ffff89e9612da800.read_ahead_stats=clear
llite.lustre-ffff89e9612da800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.22363 seconds
llite.lustre-ffff89e9612da800.read_ahead_stats=
snapshot_time                       1790676741.188808377 secs.nsecs
start_time                          1790676732.121489936 secs.nsecs
elapsed_time                        9.067318441 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-ffff89e9612da800.max_read_ahead_whole_mb=4