performance — DevMindset

.bashrc — Anatomy of Shell Startup and Performance Optimization

2026-05-302026-05-28 by Piotr Karasiński

Your terminal takes 800 ms to start. Bash loading anatomy, lazy loading version managers, completion caching, PS1 without synchronous git status — and how to drop to 50 ms without compromises.

epoll vs io_uring — When the Event Loop Isn’t Enough

2026-05-302026-05-28 by Piotr Karasiński

Anatomy of two Linux I/O models. epoll vs io_uring, readiness vs completion, syscall overhead, SQPOLL — and when reaching for io_uring instead of an event loop actually pays off.