== sanity test 248c: verify whole file read behavior ===== 11:06:49 (1789052809)
llite.lustre-ffff9bf4604d5000.read_ahead_stats=c
striped dir -i0 -c2 -H crush  /mnt/lustre/d248c.sanity
llite.lustre-ffff9bf4604d5000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.36038 seconds
llite.lustre-ffff9bf4604d5000.read_ahead_stats=
snapshot_time                       1789052817.780059478 secs.nsecs
start_time                          1789052810.852585721 secs.nsecs
elapsed_time                        6.927473757 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-ffff9bf4604d5000.read_ahead_stats=clear
llite.lustre-ffff9bf4604d5000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 5.81052 seconds
llite.lustre-ffff9bf4604d5000.read_ahead_stats=
snapshot_time                       1789052825.246735518 secs.nsecs
start_time                          1789052817.800695600 secs.nsecs
elapsed_time                        7.446039918 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-ffff9bf4604d5000.max_read_ahead_whole_mb=4