On Wed, 2025-08-06 at 13:52 +0800, Xin Zhao wrote:

In a system with high real-time requirements, the timeout mechanism of
ordinary timers with jiffies granularity is insufficient to meet the
demands for real-time performance. Meanwhile, the optimization of CPU
usage with af_packet is quite significant. Add hrtimer mode to help
compensate for the shortcomings in real-time performance.

Do you have performance numbers? It would be nice to see the test environment,
measurements carried out and some latency/jitter numbers.

Thanks,
Ferenc