== sanity test 248c: verify whole file read behavior ===== 03:42:55 (1789026175)
llite.lustre-ffff89da05e2e000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff89da05e2e000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 7.78904 seconds
llite.lustre-ffff89da05e2e000.read_ahead_stats=
snapshot_time                       1789026185.982539480 secs.nsecs
start_time                          1789026177.341323986 secs.nsecs
elapsed_time                        8.641215494 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-ffff89da05e2e000.read_ahead_stats=clear
llite.lustre-ffff89da05e2e000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 9.37923 seconds
llite.lustre-ffff89da05e2e000.read_ahead_stats=
snapshot_time                       1789026197.879305464 secs.nsecs
start_time                          1789026186.064363781 secs.nsecs
elapsed_time                        11.814941683 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-ffff89da05e2e000.max_read_ahead_whole_mb=4