== sanity test 248c: verify whole file read behavior ===== 06:59:50 (1788001190)
llite.lustre-ffff9ef4c62c8800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff9ef4c62c8800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.437 seconds
llite.lustre-ffff9ef4c62c8800.read_ahead_stats=
snapshot_time                       1788001195.329179584 secs.nsecs
start_time                          1788001191.537268579 secs.nsecs
elapsed_time                        3.791911005 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-ffff9ef4c62c8800.read_ahead_stats=clear
llite.lustre-ffff9ef4c62c8800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.25617 seconds
llite.lustre-ffff9ef4c62c8800.read_ahead_stats=
snapshot_time                       1788001199.479232902 secs.nsecs
start_time                          1788001195.348128381 secs.nsecs
elapsed_time                        4.131104521 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-ffff9ef4c62c8800.max_read_ahead_whole_mb=4