== sanity test 248c: verify whole file read behavior ===== 21:27:04 (1787102824)
llite.lustre-ffff988c02d00800.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff988c02d00800.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 3.43441 seconds
llite.lustre-ffff988c02d00800.read_ahead_stats=
snapshot_time                       1787102828.835021199 secs.nsecs
start_time                          1787102825.037846288 secs.nsecs
elapsed_time                        3.797174911 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-ffff988c02d00800.read_ahead_stats=clear
llite.lustre-ffff988c02d00800.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 3.35423 seconds
llite.lustre-ffff988c02d00800.read_ahead_stats=
snapshot_time                       1787102832.979847175 secs.nsecs
start_time                          1787102828.843032140 secs.nsecs
elapsed_time                        4.136815035 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-ffff988c02d00800.max_read_ahead_whole_mb=4