https://wccftech.com/amd-preps-zen-4-ibs-instruction-based-sampling-extensions-for-linux/

AMD recently submitted the company's Instruction-Based Sampling (IBS) capabilities for use in the Linux perf subsystem and utility. This new submission by the company is the first official patch for the Zen 4 CPU series.

The previous and current patch series for the new AMD Zen 4 family have had basic and lackluster terminology. With the latest patches under review, users can rest assured that the Zen 4 Linux support is currently taking effect and will be apparent in all-new patches and updates to the open-source operating system.