Kmod-nft-offload
You can also add it to your DEFAULT_PACKAGES list in the include/target.mk file:
The primary benefit of using kmod-nft-offload is achieving line-rate packet processing on multi-gigabit links. By offloading the entire flow to hardware, the main CPU is freed from the burden of handling every packet. This drastically reduces CPU utilization, which is especially beneficial for:
kmod-nft-offload is a netfilter kernel module that enables hardware offload support for the nftables flow table core infrastructure.
The impact of utilizing kmod-nft-offload varies based on your hardware architecture and whether your network configuration requires heavy data transformation (such as PPPoE encapsulation). Mode Configuration Average CPU Usage (Dual-Core ARM) Max Throughput Cap (Older SoCs) 80% – 100% ~250 Mbps – 400 Mbps Software Offloading Enabled 30% – 50% ~600 Mbps – 900 Mbps Hardware Offloading Enabled 1 Gbps+ (Line Rate) kmod-nft-offload
The King was finally free! With handling the heavy lifting, the King’s workload dropped from 100% down to nearly nothing. The kingdom's roads could now handle Gigabit speeds without breaking a sweat, and the palace stayed cool.
✅ Ideal for:
Not all NICs support flow offloading. You generally need enterprise-grade hardware from vendors like Mellanox (Nvidia), Intel, or Netronome. You can also add it to your DEFAULT_PACKAGES
This guide explains the functionality of this module and how it improves network throughput.
Packet routing is CPU-intensive. When the CPU runs at 100% load during large downloads, the router generates heat and consumes more power. Offloading keeps the CPU idle, keeping the device cool and extending its lifespan. Eliminate Bufferbloat and Latency Spikes
: Essential for lower-powered routers to achieve full gigabit speeds without maxing out the CPU. The impact of utilizing kmod-nft-offload varies based on
It typically relies on kmod-nf-flow and kmod-nft-nat to function. Why You Need It (The Benefits)
This path is heavy on CPU resource consumption. kmod-nft-offload introduces a shortcut.