In-situ thermal margining of computer systems for enhanced reliability testing

• US 20080255710A1
• Filed: 04/12/2007
• Published: 10/16/2008
• Est. Priority Date: 04/12/2007
• Status: Active Grant

• Current Assignee: Oracle America, Inc. (Oracle Corporation)
• Original Assignee: Oracle America, Inc. (Oracle Corporation)
• Inventors: Gross, Kenny C., Vaidyanathan, Kalyanaraman
• Granted Patent: US 7,809,984 B2
• Time in Patent Office: Days
• US Class Current: 700/300
• CPC Class Codes: G05D 23/1917 using digital means
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 11/24 Marginal checking or other specified testing methods not covered by G06F11/26, e.g. race tests

Abstract

Embodiments of the present invention provide a system that dynamically controls a temperature profile within a computer system by generating computer system activity. The system starts by receiving a desired temperature profile. The system then generates a load profile based on the desired temperature profile, wherein the load profile specifies operations to be performed by the computer system. The system next executes the load profile on the computer system to generate computer system activity, wherein the computer system activity causes the desired temperature profile in the computer system.

Claims

1. A method for dynamically controlling a temperature profile within a computer system by generating computer system activity, comprising:

receiving a desired temperature profile;

generating a load profile based on the desired temperature profile, wherein the load profile specifies operations to be performed by the computer system; and

executing the load profile on the computer system to generate computer system activity, wherein the computer system activity causes the desired temperature profile in the computer system.

2. The method of claim 1, wherein the method is performed in a feedback and control loop to facilitate obtaining the desired temperature profile in the computer system.

3. The method of claim 2, wherein obtaining the desired temperature profile using the feedback and control loop involves:

measuring a current temperature profile of the computer system;

computing a difference between the current temperature profile and the desired temperature profile;

adjusting the load profile based on the difference; and

executing the adjusted load profile on the computer system.

4. The method of claim 3, wherein measuring the temperature profile of the computer system involves using a telemetry system to measure at least one temperature in the computer system.

5. The method of claim 1, wherein generating the load profile involves specifying a level of activity for at least one component in the computer system based on an amplitude and a period of the desired temperature profile.

6. The method of claim 5, wherein specifying a level of activity for at least one component in the computer system involves generating a sequence of computer system operations that cause the at least one component to perform at the level of activity.

7. The method of claim 1, further comprising:

monitoring the computer system to detect a temperature-dependent computer system failure; and

if a computer system failure occurs, recording the time and conditions of the failure when the computer system failure occurs.

8. The method of claim 1, wherein the desired temperature profile is cyclical, which facilitates performing an accelerated temperature reliability test on the computer system.

9. A computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method for dynamically controlling a temperature profile within a computer system by generating computer system activity, the method comprising:

receiving a desired temperature profile;

generating a load profile based on the desired temperature profile, wherein the load profile specifies operations to be performed by the computer system; and

executing the load profile on the computer system to generate computer system activity, wherein the computer system activity causes the desired temperature profile in the computer system.

10. The computer-readable storage medium of claim 9, wherein the method is performed in a feedback and control loop to facilitate obtaining the desired temperature profile in the computer system.

11. The computer-readable storage medium of claim 10, wherein obtaining the desired temperature profile using the feedback and control loop involves:

measuring a current temperature profile of the computer system;

computing a difference between the current temperature profile and the desired temperature profile;

adjusting the load profile based on the difference; and

executing the adjusted load profile on the computer system.

12. The computer-readable storage medium of claim 11, wherein measuring the temperature profile of the computer system involves using a telemetry system to measure at least one temperature in the computer system.

13. The computer-readable storage medium of claim 9, wherein generating the load profile involves specifying a level of activity for at least one component in the computer system based on an amplitude and a period of the desired temperature profile.

14. The computer-readable storage medium of claim 13, wherein specifying a level of activity for at least one component in the computer system involves generating a sequence of computer system operations that cause the at least one component to perform at the level of activity.

15. The computer-readable storage medium of claim 9, further comprising:

monitoring the computer system to detect a temperature-dependent computer system failure; and

if a computer system failure occurs, recording the time and conditions when the computer system failure occurs.

16. The computer-readable storage medium of claim 9, wherein the desired temperature profile is cyclical, which facilitates performing an accelerated temperature reliability test on the computer system.

17. A computer system that dynamically controls a temperature profile within the computer system by generating computer system activity, comprising:

a processor;

a memory coupled to the processor, wherein the memory stores data and instructions for the processor;

a receiving mechanism configured to receive a desired temperature profile;

a generating mechanism coupled to the receiving mechanism, wherein the generating mechanism is configured to generate a load profile based on the desired temperature profile, wherein the load profile specifies operations to be performed by the computer system; and

an execution mechanism on the processor, wherein the execution mechanism is configured to execute the load profile to generate computer system activity, wherein the computer system activity causes the desired temperature profile in the computer system.

18. The computer system of claim 17, further comprising a feedback-and-control mechanism configured to:

use a telemetry system to measure a current temperature profile of the computer system;

compute a difference between the current temperature profile and the desired temperature profile;

wherein the generation mechanism is configured to generate an adjusted load profile if the difference is sufficiently large; and

wherein the execution mechanism is configured to execute the adjusted load profile to generate computer system activity.

19. The computer system of claim 17, wherein the load profile is comprised of a sequence of computer system operations that cause at least one component in the computer system to perform at a level of activity based on an amplitude and a period of the desired temperature profile.

20. The computer system of claim 17, further comprising:

a monitoring mechanism configured to monitor the computer system to detect a temperature-dependent computer system failure; and

a recording mechanism configured to record the time and conditions of the failure if a computer system failure occurs.