== sanity test 248c: verify whole file read behavior ===== 03:50:56 (1787385056)
llite.lustre-ffff8c9d08567000.read_ahead_stats=c
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d248c.sanity
llite.lustre-ffff8c9d08567000.max_read_ahead_whole_mb=64
whole file readahead of 64 MiB took 6.70239 seconds
llite.lustre-ffff8c9d08567000.read_ahead_stats=
snapshot_time                       1787385065.427192584 secs.nsecs
start_time                          1787385057.948245551 secs.nsecs
elapsed_time                        7.478947033 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-ffff8c9d08567000.read_ahead_stats=clear
llite.lustre-ffff8c9d08567000.max_read_ahead_whole_mb=8
non-whole file readahead of 64 MiB took 7.26699 seconds
llite.lustre-ffff8c9d08567000.read_ahead_stats=
snapshot_time                       1787385074.997806034 secs.nsecs
start_time                          1787385065.447888881 secs.nsecs
elapsed_time                        9.549917153 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-ffff8c9d08567000.max_read_ahead_whole_mb=4