title: Redis 10x more memory usage than data
body: <p>I am trying to store a wordlist in redis. The performance is great.</p>
  <p>My approach is of making a set called &quot;words&quot; and adding each new word via 'sadd'.</p>
  <p>When adding a file thats 15.9 MB and contains about a million words, the redis-server process consumes 160 MB of ram. How come I am using 10x the memory, is there any better way of approaching this problem?</p>