Best of 2025

The blog posts Hacker News loved most in 2025. 404 posts.

Tools & Productivity
75

%CPU utilization is a lie

I deal with a lot of servers at work, and one thing everyone wants to know about their servers is how close they are to being at max utilization. It should be easy, right? Just pull up top or another system monitor tool, look at network, memory and CPU utilization, and whichever one is the highest tells you how close…