Fast Technology reported on December 31 that as a localized X86 CPU processor, Zhaoxin is learning from Intel and AMD, two giants, to achieve higher frequencies by distinguishing the core physique, so as to obtain better single-core performance.
Recently, Zhaoxin has added a series of patches to the Linux kernel, focusing on supporting a feature called "preferred cores", which can choose one or two or three of the multiple cores of the processor with better physique and higher frequency.
In turn, these cores are prioritized for executing single-core performance-sensitive loads, which naturally lead to better performance.
This function uses the ACPI cpufreq driver, which depends on the cppc get highest perf function in the cppc driver.
Once the driver detects the frequency of each core, it identifies the best cores and prioritizes them for the task.
This trick has been used by Intel and AMD for many years, and it also allows users to control it by themselves.
However, it is not yet clear which processor models will be supported by this feature of Zhaoxin, and it is not known whether Windows will be supported in the future.
There is a high probability that the KX-5000 and KX-6000 series, which are already more mature, will be supported first, and then the newly released KX-7000 series will be supported.
In addition, Zhaoxin is also vigorously advancing the Linux kernel's support for Kaisheng KH-40000 series data center processors, and has also updated many patches.