title: Does disabling Redis persistence give a performance boost?
body: <p>I'm thinking about using Redis as a store for some highly transient data (we're talking it will live for maybe 30s at a time before being evicted). I know that Redis spawns a worker every so often to persist to disk when persistence is enabled. If I disable the persistence mechanism, what sort of performance benefit will that give to the rest of the system.</p>
  
  <p>Also, does anyone see any downsides to this -- since if the data is lost recovering it is pointless anyway because it is probably expired already?</p>