Every process thinks it owns all of RAM. It doesn’t. Your process has never touched real memory at all and why the CPU lies to your code on every single memory access.
Why the OS Never Lets Your Process Touch Real Memory
Posts for: #Linux
Posts about the Linux kernel, distributions, command-line tooling, and the day-to-day care and feeding of Linux machines — from desktops to homelab servers.
Running Hermes Agent on Your Own Box
A complete self-hosted AI agent on your own box. Reachable from Telegram by text or voice, runs your servers, connects to your tools via MCP, updates itself nightly.
Fixing xterm-ghostty: unknown terminal type Over SSH
Why Ghostty’s xterm-ghostty terminfo breaks SSH into remote Linux servers, why ssh-terminfo makes it worse, and the two-step fix that makes the problem go away for good.
The Userspace Tax Behind Protocols - QUIC(UDP) vs TCP
QUIC and TCP are not interchangeable.
Why Your App is Still Slow After Optimization?
Even with optimized queries, fast APIs, and a CDN, your app may still be slow. Network protocols like TCP congestion control and BGP routing introduce latency beyond your code.