The incredibly successful Zen architecture has turned the modern CPU market upside down, bringing AMD to the top of the performance race and giving users a much.
Why it matters: The Linux kernel includes an ancient trick to deal with possible incompatibilities in early ACPI implementations. Nowadays, the trick isn’t needed and just makes thing worse for AMD CPUs by penalizing performance. A patch should arrive soon.
The incredibly successful Zen architecture has turned the modern CPU market upside down, bringing AMD to the top of the performance race and giving users a much needed competitor to the long-lasting Intel run. There is a computing area, however, where AMD CPU are still suffering from a performance penalty – even though there are no actual reasons to justify this state of affairs.
While using a Linux-based operating system, AMD CPUs are slowing down when they shouldn’t. The reason for this weird behavior dates back to 2002, when support for the Advanced Configuration and Power Interface (ACPI) standard was first added to the open source kernel.
