公开(公告)号：US20170031417A1

公开(公告)日：2017-02-02

申请号：US14833324

申请日：2015-08-24

Applicant: International Business Machines Corporation

Inventor： Malcolm S. ALLEN-WARE ,  Michael S. FLOYD ,  Joshua D. FRIEDRICH ,  Charles R. LEFURGY ,  Kirk D. PETERSON ,  Karthick RAJAMANI ,  Srinivasan RAMANI ,  Todd J. ROSEDAHL ,  Gregory S. STILL ,  Brian W. THOMPTO ,  Victor ZYUBAN

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/3206 ,  G06F1/3243 ,  Y02D10/126 ,  Y02D10/152

Abstract: A method for adjusting a frequency of a processor is disclosed herein. In one embodiment, the method includes determining a total current and a temperature of the multi-core processor and estimating a leakage current for the multi-core processor. The method also includes calculating a switching current by subtracting the leakage current from the total current. The method also includes calculating an effective switching capacitance based at least in part on the switching current. The method also includes calculating a workload activity factor by dividing the effective switching capacitance by a predetermined effective switching capacitance stored in vital product data, and enforcing a turbo frequency limit of the multi-core processor based on the workload activity factor.

Abstract translation: 本文公开了一种用于调整处理器频率的方法。 在一个实施例中，该方法包括确定多核处理器的总电流和温度并估计多核处理器的漏电流。 该方法还包括通过从总电流中减去漏电流来计算开关电流。 该方法还包括至少部分地基于开关电流来计算有效开关电容。 该方法还包括通过将有效开关电容除以存储在重要产品数据中的预定有效开关电容来计算工作负载活动因子，并且基于工作负载活动因素来执行多核处理器的turbo频率限制。

公开(公告)号：US20170031415A1

公开(公告)日：2017-02-02

申请号：US14814870

申请日：2015-07-31

Applicant: International Business Machines Corporation

Inventor： Malcolm S. ALLEN-WARE ,  Michael S. FLOYD ,  Joshua D. FRIEDRICH ,  Charles R. LEFURGY ,  Kirk D. PETERSON ,  Karthick RAJAMANI ,  Srinivasan RAMANI ,  Todd J. ROSEDAHL ,  Gregory S. STILL ,  Brian W. THOMPTO ,  Victor ZYUBAN

IPC: G06F1/32

CPC classification number: G06F1/324 ,  G06F1/3203 ,  G06F1/3206 ,  G06F1/3243 ,  Y02D10/126 ,  Y02D10/152

Abstract: A system for adjusting a frequency of a processor is disclosed herein. The system includes a processor and a memory, where the memory includes a program configured to adjust a frequency of a multi-core processor. The operations include determining a total current and a temperature of the multi-core processor and estimating a leakage current for the multi-core processor. The operations also include calculating a switching current by subtracting the leakage current from the total current and calculating an effective switching capacitance based at least in part on the switching current. The operations also include calculating a workload activity factor by dividing the effective switching capacitance by a predetermined effective switching capacitance stored in vital product data, and enforcing a turbo frequency limit of the multi-core processor based on the workload activity factor.

Abstract translation: 本文公开了一种用于调整处理器频率的系统。 该系统包括处理器和存储器，其中存储器包括被配置为调整多核处理器的频率的程序。 这些操作包括确定多核处理器的总电流和温度，并估计多核处理器的漏电流。 该操作还包括通过从总电流中减去泄漏电流并至少部分地基于开关电流来计算有效开关电容来计算开关电流。 这些操作还包括通过将有效开关电容除以存储在重要产品数据中的预定有效开关电容来计算工作负载活动因子，以及基于工作负载活动因素来执行多核处理器的turbo频率限制。