title: How many requests can one Google App Engine Instance handle?
body: <p>I have a simple Cloud Endpoints Restful API that does simple things add an entity, update and entity, delete an entity, search for an entity. </p>
  
  <p>My question is how much traffic can one Google App Engine instance handle? That is, how many API requests before you need another instance?</p>
  
  <p>I know there are different <a href="https://cloud.google.com/appengine/docs/about-the-standard-environment#instance_classes" rel="noreferrer">instance classes</a> so let's just use the default <code>B4</code> one (memory: 512 MB, CPU Limit: 2.4 GHz) </p>
  
  <p>And I also know this may be a difficult question to answer but given the simple API I described above, could anyone enlighten me on what might be the average number of requests one instance could handle (let's just assume I am not using memcache or any other optimizations)? </p>
  
  <p>Any links to specific documentation would also help greatly, as I am a little confused.</p>
  
  <p>Thank you!</p>