## Reduced Latency for Xeon Servers Thanks to Linux A new patch for the Linux kernel aims to address the high wake-up latency experienced on modern Intel Xeon server platforms. In particular, the issue manifests itself with Sapphire Rapids CPUs and newer, where excessive latencies can negatively impact latency-sensitive workloads, especially when using the Linux menu governor and the NOHZ_FULL configuration. ## A Minimal Change for a Significant Impact The patch, of only 16 lines, directly intervenes on the code, modifying only one line. The rest of the file consists of explanatory comments. This modification aims to significantly improve the situation, optimizing process management and reducing waiting times. Modern operating systems, such as Linux, are the result of years of collaborative development and continuous refinement. Small changes, like this one, can have a significant impact on the performance and efficiency of the latest hardware systems.