title: Redis optimal hash set entry size
body: <p>I have some questions regarding the optimal entry size setting for Redis hash sets.</p>
  
  <ol>
  <li><p>In this example <a href="http://redis.io/topics/memory-optimization" rel="nofollow">memory-optimization</a> they use 100 hash entries
  per key but use hash-max-zipmap-entries 256 ?  Why not
  hash-max-zipmap-entries 100 or 128?</p></li>
  <li><p>On the redis website (above link) they used max hash entry size of
  100, but in this post <a href="http://instagram-engineering.tumblr.com/post/12202313862/storing-hundreds-of-millions-of-simple-key-value-pairs" rel="nofollow">instagram</a>, they mention 1000 entries. So
  does this mean the optimal setting is a function of the product of
  hash-max-zipmap-entries &amp; hash-max-zipmap-value ?(ie in this case
  Instagram has smaller hash-values than memory optimization example?)</p></li>
  </ol>
  
  <p>Your comments/clarifications are much appreciated.</p>