Quantitative measure of a video interface

• US 7,561,161 B2
• Filed: 01/28/2005
• Issued: 07/14/2009
• Est. Priority Date: 01/28/2005
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Minadakis, Yannis
• Primary Examiner(s): LEWIS, DAVID LEE
• Application Number:
  US11/046,504
• Publication Number:
  US 20060188174A1
• Time in Patent Office: 1,628 Days
• Field of Search: 345501-503, 345/520, 345/522, 345/419, 345/428, 718/104
• US Class Current: 345/501
• CPC Class Codes: G06F 3/14 Digital output to display device ; Cooperation and interconnection of the display device with other functional units

Abstract

A method and system for quantitatively measuring performance of a video interface is disclosed. The method and system determine an effectives frames per second based upon a measured frames per second that is rendered by the video interface and system resource utilization by the video interface during execution of a benchmark.

Claims

1. A method for quantifying performance of a video interface that is adapted to be installed in a computer system, said video interface including a display driver and a video card, comprising:

executing a benchmark application to send a set of requests to the video interface;

measuring frames per second displayed on a monitor by the video interface while displaying the benchmark application;

determining resource utilization as a result of execution of the benchmark application; and

determining an effective frames per second based on the measured frames per second and the determined resource utilization while displaying the benchmark application wherein the effective frames per second is equal to the resources that remain available while the benchmark application is displaying divided by the resources that are consumed while the benchmark application is displaying multiplied by the frames per second of the display of the benchmark application.

2. The method of claim 1, wherein the step of determining resource utilization comprises:

determining system resources that remain available while the benchmark application executes; and

determining system resources that are consumed as a result of execution of the benchmark application.

3. The method of claim 2 whereby the steps of determining system resources that remain available and system resources that are consumed comprises:

maintaining a log which identifies a state;

determining whether the system is in an idle state;

during the period in the idle state, determining whether a stateless event has occurred; and

depending upon whether the stateless event has occurred, determining whether system resources are available or consumed.

4. The method of claim 2 wherein the system resources that are consumed is an approximate value determined based upon the total time consumed by all system resources during execution of the benchmark.

5. The method of claim 2 wherein the system resources that are consumed excludes CPU time used by processes unrelated to the benchmark application.

6. The method of claim 2 wherein the system resources that are consumed and the system resources that remain available are determined concurrently during execution of the benchmark application.

7. The method of claim 1, wherein the measured frames per second is determined concurrently during execution of the benchmark application.

8. The method of claim 2, wherein the determined system resources that are consumed is an approximate value.

14. The computer-readable medium of claim 2, wherein the determined system resources that are consumed is an approximate value.

9. A computer-readable medium having instructions for quantifying performance of a video interface that is adapted to be installed in a computer system, said video interface including a display driver and a video card, comprising:

executing a benchmark application to send a set of requests to the video interface;

measuring frames per second displayed on a monitor by the video interface while displaying the benchmark application;

determining resource utilization as a result of execution of the benchmark application; and

determining an effective frames per second based on the measured frames per second of the benchmark application and the determined resource utilization while displaying the benchmark application wherein

the effective frames per second is equal to the resources that remain available while the benchmark application is displaying divided by the resources that are consumed while the benchmark application is displaying multiplied by the frames per second of the display of the benchmark application.

10. The computer-readable medium of claim 9, whereby the step of determining resource utilization comprises:

determining system resources that remain available while the benchmark application executes; and

determining system resources that are consumed as a result of execution of the benchmark application.

11. The computer-readable medium of claim 10 whereby the steps of determining system resources that remain available and system resources that are consumed comprises:

maintaining a log which identifies a state;

determining whether the system is in an idle state;

during the period in the idle state, determining whether a stateless event has occurred; and

depending upon whether the stateless event has occurred, determining whether system resources are available or consumed.

12. The computer-readable medium of claim 10 wherein the system resources that are consumed is an approximate value determined based upon the total time consumed by all system resources during execution of the benchmark application.

13. The computer-readable medium of claim 10 wherein the system resources that are consumed excludes CPU time used by processes unrelated to the benchmark application.

15. A system for quantifying video performance, comprising:

a computer having a video interface including a display driver and a video card;

a monitor coupled to the video interface;

an evaluation module executing in the computer comprising

executing a benchmark process to send a set of requests to the video interface,

measuring the frames per second displayed on a monitor by the video interface,

determining resource utilization as a result of execution of the benchmark, and

determining an effective frames per second based on the measured frames per second and the determined resource utilization while displaying the benchmark process wherein the effective frames per second is equal to the resources that remain available while the benchmark process is displaying divided by the resources that are consumed while the benchmark process is displaying multiplied by the frames per second of the display of the benchmark process.

16. The system of claim 15 wherein the evaluation module maintains a log which identifies a state;

determines whether the system is in an idle state;

determines whether a stateless event has occurred; and

establishes whether system resources are available or consumed.

17. The system of claim 16 wherein consumed resources are an approximate value determined based upon the total time consumed by all system resources during execution of the benchmark application.

18. The system of claim 16 wherein consumed resources exclude CPU time used by processes unrelated to the benchmark application.