Method and system for network driven automatic adaptive rendering impedance

• US 9,930,082 B2
• Filed: 11/20/2012
• Issued: 03/27/2018
• Est. Priority Date: 11/20/2012
• Status: Active Grant

• Current Assignee: NVIDIA Corporation
• Original Assignee: NVIDIA Corporation
• Inventors: Ibarria, Lawrence
• Primary Examiner(s): Lazaro, David
• Application Number:
  US13/682,629
• Publication Number:
  US 20140143297A1
• Time in Patent Office: 1,953 Days
• Field of Search: 709246, 709231, 710 56, 715716
• CPC Class Codes: H04L 47/25 with rate being modified by the source upon detecting a change of network conditions
• CPC Class Codes: H04L 47/283 in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 65/60 Network streaming of media packets
• CPC Class Codes: H04L 67/10 in which an application is distributed across nodes in the network software deployment G06F8/60; multiprogramming arrangements G06F9/46

Abstract

A system and method for network driven automatic adaptive rendering impedance are presented. Embodiments of the present invention are operable to dynamically throttle the frame rate associated with an application using a server based graphics processor based on determined communication network conditions between a server based application and a remote server. Embodiments of the present invention are operable to monitor network conditions between the server and the client using a network monitoring module and correspondingly adjust the frame rate for a graphics processor used by an application through the use of a throttling signal in response to the determined network conditions. By throttling the application in the manner described by embodiments of the present invention, power resources of the server may be conserved, computational efficiency of the server may be promoted and user density of the server may be increased.

Claims

1. A method of throttling an application responsive to a communication network condition, said method comprising:

monitoring said communication network condition of a communication network using a host device, said host device communicatively coupled to a plurality of remote devices over said communication network, wherein said host device is operable to monitor said communication network condition in real-time based in part by determined transmission rates of frames from said host device received by said remote devices;

determining a frame generation rate associated with said application using said host device, wherein said host device uses a graphics processor residing therein for generating frames for said application at said frame generation rate; and

adjusting said frame generation rate of said graphics processor responsive to said communication network condition when said communication network condition exceeds a threshold, wherein the adjusting comprises signaling said graphics processor to alter a timing of when said graphics processor responds to a request made by said application to begin rendering a new frame.

2. The method of throttling an application described in claim 1, wherein said monitoring further comprises:

determining a network bandwidth of said communication network using a network status signal comprising data associated with said communication network condition.

3. The method of throttling an application described in claim 1, wherein said adjusting said frame generation rate comprises synchronizing said frame generation rate with a virtualized VBlank signal generated at said host device.

4. The method of throttling an application described in claim 1, wherein said adjusting said frame generation rate comprises synchronizing said frame generation rate with a virtual VSync signal generated at said host device.

5. The method of throttling an application described in claim 3, wherein said virtual VBlank signal is generated by a software module resident on the host device.

6. The method of throttling an application described in claim 1, wherein said host device comprises a virtual graphics processor, wherein said virtual graphics processor is operable to execute multiple instantiations of said application in parallel for streaming display output to said plurality of remote devices over said communication network.

7. The method of throttling an application described in claim 2, wherein said network status signal is transmitted at fixed time intervals.

8. The method of throttling an application described in claim 2, wherein said network status signal is transmitted at varying time intervals.

9. for throttling an application responsive to a network condition, said system comprising:

a memory device configured to store a plurality of programmed instructions; and

a graphics processor configured to execute the plurality of programmed instructions in order to implement;

a streaming module operable to stream display output data of said application to a client device of a plurality of client devices over a network;

a network monitoring module operable to monitor said network condition over said network based in part by determined transmission rates of frames from said a host device received by said remote devices, wherein said graphics processor resides in said host device;

a determination module operable to determine a frame generation rate associated with said application; and

a synchronization module for adjusting said frame generation rate of said graphics processor responsive to said communication network condition when said communication network condition exceeds a threshold, wherein the adjusting comprises signaling said graphics processor to alter a timing of when said graphics processor responds to a request made by said application to begin rendering a new frame.

10. The system for throttling an application described in claim 9, wherein said network monitoring module is further operable to determine a network bandwidth of said network using a network status signal comprising data associated with said communication network condition.

11. The system for throttling an application described in claim 9, wherein said synchronization module is operable to synchronize said frame generation rate with the presence of a virtualized VBlank signal.

12. The system for throttling an application described in claim 9, wherein said synchronization module is operable to synchronize said frame generation rate using a virtual VSync signal.

13. The system for throttling an application described in claim 11, wherein said virtualized VBlank signal is generated from a software module.

14. The system for throttling an application described in claim 10, wherein said network status signal is transmitted at fixed time intervals.

15. The system for throttling an application described in claim 10, wherein said network status signal is transmitted at varying time intervals.

16. A method of throttling an application responsive to a network condition, said method comprising:

receiving a network status signal comprising data associated with said network condition from a network module of a host device, said host device coupled to a client device through a network, wherein said network condition is associated with said network and time and based in part by determined transmission rates of frames from said host device received by said remote devices;

determining a frame generation rate associated with said application using said host device wherein said application is resident on said host device; and

dynamically adjusting said frame generation rate of a graphics processor responsive to said network condition using a signal when said network condition exceeds a threshold, wherein the adjusting comprises signaling said graphics processor to alter a timing of when said graphics processor responds to a request made by said application to begin rendering a new frame, wherein said graphics processor resides in said host device.

17. The method of throttling an application described in claim 16, wherein said network status signal is operable to determine a network bandwidth of said network.

18. The method of throttling an application described in claim 16, wherein said signal is operable to synchronize said frame generation rate with a virtual VBlank signal.

19. The method of throttling an application described in claim 16, wherein said signal is operable to synchronize said frame generation rate with a virtual VSync signal.

20. The method of throttling an application described in claim 18, wherein said virtual VBlank signal is generated from a software module resident on said host device.

21. The method of throttling an application described in claim 20, wherein said software module is a display driver.