Linux 6.17 is adding support for arm's Branch Record Buffer Extension (BRBE), which does something similar of recording branches taken! Not a new capability at

Linux 6.17 is adding support for arm's Branch Record Buffer Extension (BRBE), which does something similar of recording branches taken! Not a new capability at all, but Linux support is new. The lag to adoption for this sort of stuff always seems very high. https://www.phoronix.com/news/Linux-6.17-ARM64 https://www.phoronix.com/news/Linux-6.17-ARM64