== sanity test 248c: verify whole file read behavior ===== 15:10:21 (1782760221)
llite.lustre-ffff8e0b49297800.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff8e0b49297800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.56578 seconds
llite.lustre-ffff8e0b49297800.read_ahead_stats=
snapshot_time                       1782760230.481963507 secs.nsecs
start_time                          1782760223.206659168 secs.nsecs
elapsed_time                        7.275304339 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-ffff8e0b49297800.read_ahead_stats=clear
llite.lustre-ffff8e0b49297800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.70797 seconds
llite.lustre-ffff8e0b49297800.read_ahead_stats=
snapshot_time                       1782760240.596474695 secs.nsecs
start_time                          1782760230.508275254 secs.nsecs
elapsed_time                        10.088199441 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-ffff8e0b49297800.max_read_ahead_whole_mb=4