Why is MySQL threads_per_sec set to 0?

Question

MySQL

I ran tuning-primer.sh for the first time - he advised me to enable threads. I turned them on in the settings, a few days passed, as a result it writes:

WORKER THREADS
   Current thread_cache_size = 4
   Current threads_cached = 3
   Current threads_per_sec = 0
   Historic threads_per_sec = 0

Why threads_per_sec = 0? Where can I read about it, do I need to change something?

Answer 1

threads_per_sec = 0 because new threads are not created, but taken from the cache.
Here you can read about threads: mysqltips.blogspot.com.by/2007/03/mysql-threads-tu...

Answer 2

well, open the script and see what it is