Worked on the netty/netty repository to deliver IORING_ENTER_NO_IOWAIT support in the io_uring transport, targeting more accurate CPU usage reporting on Linux kernels 6.15 and above. The implementation involved integrating new native constants and feature detection logic in Java, ensuring the io_uring_enter system call correctly applies the NO_IOWAIT flag when supported. This change prevents idle event loop threads from inflating iowait metrics, resulting in more realistic CPU pressure signals and reducing unnecessary CPU frequency boosts. The work included comprehensive unit testing and build validation on modern Linux distributions, demonstrating strong backend development and Linux kernel integration skills.