Code compilation management service

• US 7,730,464 B2
• Filed: 09/14/2005
• Issued: 06/01/2010
• Est. Priority Date: 09/14/2005
• Status: Active Grant

• Current Assignee: Microsoft Technology Licensing LLC (Microsoft Corporation)
• Original Assignee: Microsoft Corporation
• Inventors: Trowbridge, Sean E.
• Primary Examiner(s): Zhen; Wei Y
• Assistant Examiner(s): Rampuria; Satish
• Application Number:
  US11/227,702
• Publication Number:
  US 20070061787A1
• Time in Patent Office: 1,721 Days
• Field of Search: 717136-161
• US Class Current: 717/140
• CPC Class Codes: G06F 8/44 Encoding

Abstract

The contents of a cache of specialized code interpreted into an intermediate language may be recompiled for execution in a managed execution environment in accordance with an automated process in such a manner to minimize any impact on machine resources.

Claims

1. A method, comprising:

receiving information regarding managed code, wherein the information comprises an analysis from a loader module indicating whether a native image component of the managed code is reliably executable in a managed execution environment, and wherein the analysis accounts for at least one change associated with the managed code or the managed execution environment after an install time associated with the managed code, and wherein the at least one change comprises at least one of;

a processor change, a security setting change of the managed code or the managed execution environment, new profile data, an upgrade or version change to the managed code or the managed execution environment, a component change of the managed execution environment, a change in an assemblage of code associated with the managed code, or a context change in the managed execution environment;

predicting a usage model for the managed code based on the information, wherein the usage model includes a timing of execution for the managed code in the managed execution environment;

scheduling a compilation of at least a portion of the managed code based on the usage model; and

performing the scheduled compilation.

2. The method of claim 1, wherein the method is implemented prior to or during a runtime associated with the managed code.

3. The method of claim 1, wherein the loader module is implemented in the managed execution environment.

4. The method of claim 3, wherein the loader module is configured to serve as an entry point for the managed code into the managed execution environment.

5. The method of claim 1, wherein the managed code is compiled in units of any of assemblies, methods, or types.

6. The method of claim 1, wherein the scheduling is further based on a processing load of the managed execution environment that is to execute the managed code.

7. At least one computer-readable medium having one or more executable instructions that, when read, cause one or more processors to:

receive at least one analysis of cached native image code components, wherein the analysis indicates whether individual cached native image code components are reliably executable in a managed execution environment;

determine whether at least a portion of the cached native image code components is to be compiled based on the received analysis, wherein to determine comprises determining whether a change associated with the cached native image code components or the managed execution environment has occurred between an install time and a runtime associated with the cached native image code components, and wherein the change comprises at least one of;

a processor change, a security setting change of the cached native image code components or the managed execution environment, new profile data, an upgrade or version change to the cached native image code components or the managed execution environment, a component change of the managed execution environment, a change in an assemblage of code associated with the native image code components, or a context change in the managed execution environment;

predict a usage model based on the at least one analysis, wherein the usage model includes a timing of execution for the cached native image code components; and

schedule compilation for at least the portion of the cached native image code components based at least in part on the determination the usage model.

8. The least one computer-readable medium of claim 7, wherein the at least one analysis includes a static analysis of potential usage and configurations of the cached native image code components by a virtual machine in the managed execution environment.

9. The at least one computer-readable medium of claim 7, wherein the at least one analysis includes a dependency analysis regarding which of the cached native image code components are to be loaded into a virtual machine in the managed execution environment.

10. The at least one computer-readable medium of claim 7, wherein the one or more executable instructions, when read, further cause the one or more processors to determine, based at least in part on the analysis, whether the cached native image code components are appropriate for a processing context of a virtual machine in the managed execution environment.

11. The least one computer-readable medium of claim 7, wherein the one or more executable instructions, when read, further cause the one or more processors to order an on-demand compilation of at least the portion of the cached native image code components.

12. A system, comprising:

a receiver implemented at least in part by a computing device and configured to receive at least one analysis regarding intermediate language (IL) code from a loader in a runtime execution environment; and

a manager configured to;

determine whether at least one change associated with the IL code or the runtime execution environment has occurred, wherein the at least one change comprises at least one of;

a processor change, a security setting change of the IL code or the runtime execution environment, new profile data, an upgrade or version change to the IL code or the runtime execution environment, a component change of the runtime execution environment, a change in an assemblage of code associated with the IL code, or a context change in the runtime execution environment;

predict a usage model based on the at least one analysis, wherein the usage model includes a timing of execution of the IL code in the runtime execution environment; and

schedule compilation for at least a portion of the IL code based at least in part on the usage model.

13. The system of claim 12, wherein the system is implemented as a service outside of the runtime execution environment.

14. The system of claim 12, wherein the at least one analysis indicates which portions of the IL code are to be loaded into a virtual machine in the runtime execution environment.

15. The method of claim 12, wherein the at least one analysis includes a static analysis of potential usage and configurations of the IL code by a virtual machine in the runtime execution environment.