Intel® Ethernet 800 Series
Linux Performance Tuning Guide
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