Module 8 of 8

Advanced Topics & Emerging Areas

Userspace drivers with io_uring, DPDK for packet processing, WebAssembly with WASI, and cross-compilation for heterogeneous targets.

4 lessons

~26 hours

175 XP

Use the io_uring interface for submission/completion queues, linked requests, and poll-based completions without context switches.

Poll-mode drivers, hugepages, memory pools, ring buffers, and build a L2/L3 forwarding application with zero-copy.

Compile C to WebAssembly with WASI, use wasmtime/wasm3 for embedding, and interop with host capabilities (files, sockets, clocks).

Build Canadian crosses, use sysroot and multiarch, target RISC-V, ARM64, and GPUs with OpenMP/OpenACC offloading.