== sanity test 248c: verify whole file read behavior ===== 19:31:45 (1788564705)
llite.lustre-ffff8ac5851f9800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff8ac5851f9800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.38891 seconds
llite.lustre-ffff8ac5851f9800.read_ahead_stats=
snapshot_time                       1788564714.881017953 secs.nsecs
start_time                          1788564707.819358039 secs.nsecs
elapsed_time                        7.061659914 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-ffff8ac5851f9800.read_ahead_stats=clear
llite.lustre-ffff8ac5851f9800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 4.96823 seconds
llite.lustre-ffff8ac5851f9800.read_ahead_stats=
snapshot_time                       1788564721.263429590 secs.nsecs
start_time                          1788564714.895784665 secs.nsecs
elapsed_time                        6.367644925 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-ffff8ac5851f9800.max_read_ahead_whole_mb=4