Backend & systems engineering — mostly Linux internals, the parts under the syscall.https://blog.sabti.dev/https://blog.sabti.dev/posts/who-uses-the-cpu-tail-f/https://blog.sabti.dev/posts/who-uses-the-cpu-tail-f/This post started with running tail -f in one terminal and echo >> in another, and finding a red anon_inode:inotify entry in /proc. It unpacks that discovery and answers the question: who actually does the work when you run tail -f?Sun, 31 May 2026 12:00:00 GMT