== sanity test 248c: verify whole file read behavior ===== 13:25:35 (1785950735)
llite.lustre-ffff95d3c3911800.read_ahead_stats=c
striped dir -i0 -c2 -H all_char  /mnt/lustre/d248c.sanity
llite.lustre-ffff95d3c3911800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 8.80495 seconds
llite.lustre-ffff95d3c3911800.read_ahead_stats=
snapshot_time                       1785950747.418820441 secs.nsecs
start_time                          1785950737.772787139 secs.nsecs
elapsed_time                        9.646033302 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-ffff95d3c3911800.read_ahead_stats=clear
llite.lustre-ffff95d3c3911800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 8.22596 seconds
llite.lustre-ffff95d3c3911800.read_ahead_stats=
snapshot_time                       1785950757.961777436 secs.nsecs
start_time                          1785950747.435238661 secs.nsecs
elapsed_time                        10.526538775 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-ffff95d3c3911800.max_read_ahead_whole_mb=4