  This report explores the use of kernel-bypass networking in FaaS runtimes and
demonstrates how using Junction, a novel kernel-bypass system, as the backend
for executing components in faasd can enhance performance and isolation.
Junction achieves this by reducing network and compute overheads and minimizing
interactions with the host operating system. Junctiond, the integration of
Junction with faasd, reduces median and P99 latency by 37.33% and 63.42%,
respectively, and can handle 10 times more throughput while decreasing latency
by 2x at the median and 3.5 times at the tail.
