== sanity test 248c: verify whole file read behavior ===== 03:02:12 (1788764532)
llite.lustre-ffff95802979d000.read_ahead_stats=c
striped dir -i0 -c2 -H crush2  /mnt/lustre/d248c.sanity
llite.lustre-ffff95802979d000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.45411 seconds
llite.lustre-ffff95802979d000.read_ahead_stats=
snapshot_time                       1788764537.664161213 secs.nsecs
start_time                          1788764533.848579675 secs.nsecs
elapsed_time                        3.815581538 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-ffff95802979d000.read_ahead_stats=clear
llite.lustre-ffff95802979d000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.84642 seconds
llite.lustre-ffff95802979d000.read_ahead_stats=
snapshot_time                       1788764542.505914613 secs.nsecs
start_time                          1788764537.677552544 secs.nsecs
elapsed_time                        4.828362069 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-ffff95802979d000.max_read_ahead_whole_mb=4