Your Operating System Isn’t Broken. Your Brain Is.
You check your server’s RAM. 90% used. Panic sets in. But FreeBSD isn’t broken β ZFS ARC is caching aggressively because that’s exactly what modern operating systems are designed to do. The real problem isn’t a memory leak. It’s that your mental model of resource management is stuck in 1998, when RAM was scarce and every megabyte mattered. Unused RAM is wasted RAM. Learn to read it.