title: which way is good for use memcached , more instances with small memory or less instances with big memory?
body: <p>I am preparing hardwares for memcaced server and I have a question:</p>
  
  <p>Should I start more instances with less memory or less instances with big memory ? For Example,to start an instance with a memory of 128G with one port or start 16 instance with a memory of 128G with 16 port ,which is the better one for memcached?</p>