Prometheus gives you CPU/memory total metrics, the profiler used in the article gets you much higher resolution: down to the line number of your source code.
If you're looking to optimize your project I would recommend using a profiler rather than metrics that just tell you the total.
(disclaimer: I'm the founder of the company that offers the product shown in the blog post, but I also happen to be a Prometheus maintainer)
If you're looking to optimize your project I would recommend using a profiler rather than metrics that just tell you the total.
(disclaimer: I'm the founder of the company that offers the product shown in the blog post, but I also happen to be a Prometheus maintainer)