What are memcached threads? Why would I use them?
Threads rule! Thanks to Steven Grimm and Facebook, memcached 1.2 and higher has a threaded operation mode. I won’t get into great detail here since I might get it wrong. The threaded system allows memcached to utilize more than a single CPU and share the cache between all of them. It does this by having a very simple locking mechanism when certain values, items, etc need to be updated. This helps make multi gets more efficient, versus running multiple nodes on the same physical server to achieve performance. If you don’t have a heavily loaded setup, you probably don’t need to configure threads. If you’re running a gigantic website with gigantic hardware, you might see benefit here.
