Intel® Ethernet 800 Series

Linux Performance Tuning Guide

ID Date Version Classification
636781 07/19/2025 Public
Document Table of Contents

Network Device Backlog

This feature helps improve network performance by managing incoming traffic effectively, reducing packet loss, lowering latency, and boosting throughput. This leads to a better user experience and faster system response.

By default, it is enabled in most of the Linux operating systems. To check the default value:

sysctl net.core.netdev_​max_​backlog

The maximum value for netdev_​max_​backlog can vary depending on factors like kernel version, hardware, memory, and workload. In many cases, 8192 is seen as a good value.

sysctl -w net.core.netdev_​max_​backlog=8192