title: Downside to setting Redis's set-max-intset-entries too large?
body: <p>According to <a href="http://redis.io/topics/memory-optimization" rel="nofollow">Redis's memory optimization page</a> one can set the configurable <code>set-max-intset-entries</code> in order to optimize memory for large sets of integers. I did some testing with integers less than 2M, setting <code>set-max-intset-entries</code>to 10000. I found that each int averaged about 4 bytes when the set was less than the max, and when longer than the max, each int was about 60 bytes.</p>
  
  <p>However, the memory optimization page also says that there is a CPU/memory trade off when increasing this max. Where does the performance tradeoff come from when increasing this max, and is there any way that I can run tests so I can quantify the tradeoff that I'm making?</p>