Frist spent some time and try to optimize. If that's too hard or time consuming for proper reasons, then scale up. If you see many long bars in htop on the bigg

Frist spent some time and try to optimize. If that's too hard or time consuming for proper reasons, then scale up. If you see many long bars in htop on the biggest machine your provider has to offer, then scale out. Of course, you might want to scale out earlier for other reasons e.g. fault tolerance, if you want to allow different kinds of failures.