The upcoming Linux 7.0 kernel will include a new minor performance optimization targeting its event poll "epoll" code. This change, merged today, refines the mechanism for efficient I/O multiplexing and monitoring of file descriptors to determine when I/O operations are possible. Phoronix reported that this specific optimization has been "shown with AMD Zen 2 CPUs," indicating particular benefits for systems utilizing this processor architecture. The enhancement aims to slightly improve the kernel's efficiency in handling I/O events.