Jesper L. Andersen

When Github can’t throw dice

Suppose you are playing Dungeons & Dragons (or Bunkers & Badasses). Suppose you throw 20 20-sided dice. What are the chances of getting a least a single dice with a 1?

Well, the easier way to formulate that question is to ask the dual question: “what is…

An Erlang/OTP 20.0 optimization

Edit: some word choices have been altered slightly in order to make some parts more clear.

This is a short blurb about a specific optimization present in Erlang 20.0 which is scheduled for release in June 2017. The README file mentions the…

Full Queues and their woes

Suppose you have a bounded queue of size 10. In a normal setting, you system may load this queue with up to 5 elements. Under load, the queue might increase to say 7 or 8 elements, but you are not going to reach the bound of the queue. Typically the queue is empty, some elements…