公开(公告)号：US20130151879A1

公开(公告)日：2013-06-13

申请号：US13759709

申请日：2013-02-05

Applicant: QUALCOMM Incorporated

Inventor： Steven S. Thomson ,  Bohuslav Rychlik ,  Ali Iranli ,  Sumit Sur ,  Norman S. Gargash

IPC: G06F1/32

CPC classification number: G06F1/329 ,  G06F1/3203 ,  G06F1/3228 ,  G06F1/324 ,  G06F1/3296 ,  Y02D10/126 ,  Y02D10/172

Abstract: Methods, systems and devices that include a dynamic clock and voltage scaling (DCVS) solution configured to compute and enforce performance guarantees for a group of processors to ensure that the processors does not remain in a busy state (e.g., due to transient workloads) for a combined period that is more than a predetermined amount of time above that which is required for one of the processors to complete its pre-computed steady state workload. The DCVS may adjust the frequency and/or voltage of one or more of the processors based on a variable delay to ensure that the multiprocessor system only falls behind its steady state workload by, at most, a predefined maximum amount of work, irrespective of the operating frequency or voltage of the processors.

Abstract translation: 包括动态时钟和电压缩放（DCVS）解决方案的方法，系统和设备，用于为一组处理器计算和实施性能保证，以确保处理器不处于忙状态（例如，由于临时工作负载） 该组合时段大于超过一个处理器完成其预先计算的稳态工作量所需的预定时间量。 DCVS可以基于可变延迟来调整一个或多个处理器的频率和/或电压，以确保多处理器系统仅落后于其稳态工作负载，最多只能达到预定的最大工作量，而不管 处理器的工作频率或电压。