The general idea of A/B testing is that some users will see one version of a website feature and other users see a different version. These two versions of the feature might ultimately provide the same functionality, but provide the user with a slightly different experience, depending...
I will gladly take a little overhead and fire up a new process or a new machine, if necessary, if it means that an external service like Memcached will not bring my event-loop to a halt when it has issues. It may be fast now, but one network glitch or Memcached crash may render my eve...
You will notice that each version has 2 green bars. The top one you control to set what percentage of your user-base will see each version. The sum of all the versions can not go over 100%, so it will stop once the total of versions comes to 100%. The second bar is the percentage of y...