Improving software performance on configurable multicore processors

由于CPU芯片设计中的电源墙，现代通用处理器将不断增加的CPU管芯的晶体管容量组织成多个独立的处理单元或核心。最初，CPU核心配置是同构的和静态的。然而，有一种趋势是CPU支持动态、异类的核心配置。这意味着可以动态更改CPU属性，如活动核心的数量、活动核心的速度和核心的高速缓存配置，以适应CPU工作负载的特征。动态调整CPU配置提供了许多潜在的好处，包括更好的性能、更低的能耗，以及提高将CPU资源定向到高优先级工作负载的能力。

Due to the power wall in CPU chip design, modern general-purpose processors organize the ever-increasing transistor capacity of CPU dies into multiple independent processing units, or cores. Initially, CPU core configurations were homogeneous and static. However, there is a trend towards CPUs that support dynamic, heterogeneous core configurations. This means that CPU properties such as the number of active cores, the speeds of the active cores, and the cores' cache configurations, can be changed on the fly to fit the characteristics of the CPU's workload. Dynamic adjustment of the CPU configuration offers many potential benefits, including better performance, reduced energy consumption, and improved ability to target CPU resources to high priority workloads.