Dynamic clock voltage scaling (DCVS) based on application performance in a system-on-a-chip (SOC), and related methods and processor-based systems

• US 10,409,353 B2
• Filed: 06/24/2013
• Issued: 09/10/2019
• Est. Priority Date: 04/17/2013
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Hill, Rexford A.
• Primary Examiner(s): Derose, Volvick
• Application Number:
  US13/924,676
• Publication Number:
  US 20140317427A1
• Time in Patent Office: 2,269 Days
• Field of Search: 713322
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/324 by lowering clock frequency
• CPC Class Codes: G06F 1/3296 by lowering the supply or operating voltage
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

Dynamic clock voltage scaling (DCVS) based on application performance in a system-on-a-chip (SOC), and related methods and processor-based systems are disclosed. In this regard, in one embodiment, a method of providing an application-specific DCVS in a SOC is provided. The method comprises receiving performance data corresponding to at least one performance characteristic of a SOC indicative of an execution performance of an application executing on the SOC. The method also comprises storing the performance data for the application executing on the SOC. The method further comprises, responsive to executing the application on the SOC, determining an application-specific DCVS setting for the application based on the performance data, and setting a DCVS parameter of the SOC based on the determined application-specific DCVS setting for the application. In this manner, an optimal DCVS setting is provided for the SOC to optimize computing resources, thus improving perceived performance of the application.

Claims

1. A method of providing application-specific dynamic clock voltage scaling (DCVS) in a system-on-a-chip (SOC), comprising:

receiving, in a SOC on an electronic device, crowd-sourced performance data stored outside the electronic device, the crowd-sourced performance data corresponding to at least one execution performance characteristic indicative of an execution performance affecting a perception of a user of responsiveness of an application executing on the SOC;

storing the crowd-sourced performance data for the application executing on the SOC; and

responsive to a subsequent execution of the application on the SOC;

determining an application-specific DCVS setting for the subsequently executed application based on the stored crowd-sourced performance data for the application;

setting a DCVS parameter of the SOC based on the determined application-specific DCVS setting for the subsequently executed application; and

storing the application-specific DCVS setting in a performance profile corresponding to the application;

wherein the application-specific DCVS setting includes a voltage setting or a frequency setting or a combination of a voltage and a frequency setting.

2. The method of claim 1, further comprising launching the application for execution on the SOC,

wherein determining the application-specific DCVS setting comprises determining a clock frequency signal for the application based on the crowd-sourced performance data after launching the application for execution on the SOC.

3. The method of claim 1, further comprising launching the application for execution on the SOC,

wherein determining the application-specific DCVS setting comprises determining a voltage setting signal for the application based on the crowd-sourced performance data after launching the application for execution on the SOC.

4. The method of claim 1, wherein determining the application-specific DCVS setting for the application is based on a previously stored application-specific DCVS setting in the performance profile corresponding to the application.

5. The method of claim 1, wherein the at least one execution performance characteristic of the SOC comprises a processor task queue, processor idle time, cache usage, user feedback, network on chip (NOC) latency, or NOC queue depth, or combinations thereof.

6. The method of claim 1 integrated into a semiconductor die.

7. The method of claim 1 integrated into a device selected from the group consisting of a set top box, an entertainment unit, a navigation device, a communications device, a fixed location data unit, a mobile location data unit, a mobile phone, a cellular phone, a computer, a portable computer, a desktop computer, a personal digital assistant (PDA), a monitor, a computer monitor, a television, a tuner, a radio, a satellite radio, a music player, a digital music player, a portable music player, a digital video player, a video player, a digital video disc (DVD) player, and a portable digital video player.

8. An application-specific dynamic clock voltage scaling (DCVS) circuit in a system-on-a-chip (SOC), comprising:

a data gathering agent configured to;

receive, in a SOC on an electronic device, crowd-sourced performance data stored outside the electronic device, the crowd-sourced performance data corresponding to at least one execution performance characteristic indicative of an execution performance affecting a perception of a user of responsiveness of an application executing on the SOC; and

store the crowd-sourced performance data for the application executing on the SOC;

an application monitoring agent configured to;

detect a subsequent execution of the application on the SOC; and

responsive to detecting the subsequent execution of the application on the SOC;

determine an application-specific DCVS setting for the subsequently executed application based on the crowd-sourced performance data stored by the data gathering agent for the application;

set a DCVS parameter of the SOC based on the determined application-specific DCVS setting for the subsequently executed application; and

store the application-specific DCVS setting in a performance profile corresponding to the application;

wherein the application-specific DCVS setting includes a voltage setting or a frequency setting or a combination of a voltage and a frequency setting.

9. The application-specific DCVS circuit of claim 8, wherein the SOC is configured to launch the application for execution on the SOC;

and

wherein the application monitoring agent is configured to determine the application-specific DCVS setting by determining a clock frequency signal for the application based on the crowd-sourced performance data after the application is launched for execution on the SOC.

10. The application-specific DCVS circuit of claim 8, wherein the SOC is configured to launch the application for execution on the SOC;

and

wherein the application monitoring agent is configured to determine the application-specific DCVS setting by determining a voltage setting signal for the application based on the crowd-sourced performance data after the application is launched for execution on the SOC.

11. The application-specific DCVS circuit of claim 8, wherein the application monitoring agent is configured to determine the application-specific DCVS setting for the subsequently executed application based on a previously stored application-specific DCVS setting in the performance profile corresponding to the application.

12. The application-specific DCVS circuit of claim 8, wherein the data gathering agent is configured to receive the at least one execution performance characteristic of the SOC indicating a processor task queue, processor idle time, cache usage, user feedback, network on chip (NOC) latency, or NOC queue depth, or combinations thereof.

13. An application-specific dynamic clock voltage scaling (DCVS) circuit in a system-on-a-chip (SOC), comprising:

means for receiving, in a SOC on an electronic device, crowd-sourced performance data stored outside the electronic device, the crowd-sourced performance data corresponding to at least one execution performance characteristic indicative of an execution performance affecting a perception of a user of responsiveness of an application executing on the SOC;

means for storing the crowd-sourced performance data for the application executing on the SOC;

means for determining an application-specific DCVS setting for a subsequently executed application based on the stored crowd-sourced performance data responsive to subsequently executing the application on the SOC;

means for setting a DCVS parameter of the SOC based on the means for determining the application-specific DCVS setting for the subsequently executed application; and

means for storing the application-specific DCVS setting in a performance profile corresponding to the application;

wherein the means for determining the application-specific DCVS setting comprises an application-specific voltage setting or an application-specific clock frequency setting, or a combination of a voltage and a frequency setting.

14. The application-specific DCVS circuit of claim 13, wherein the means for determining the application-specific DCVS setting for the subsequently executed application is based on a previously stored application-specific DCVS setting in the performance profile corresponding to the application.