Method and apparatus for feedback-based management of combined heap and compiled code caches

a technology of compiled code and combined heap, applied in the field of information processing systems, can solve the problems of not being able to perform typical bytecode interpretation and significantly reducing performan

Inactive Publication Date: 2006-12-07
LEWIS BRIAN T
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While an MRTE may directly interpret bytecodes, this is not typically done unless memory is exceedingly limited.
MRTE interpretation of bytecodes may significantly reduce performance.

Method used

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  • Method and apparatus for feedback-based management of combined heap and compiled code caches
  • Method and apparatus for feedback-based management of combined heap and compiled code caches
  • Method and apparatus for feedback-based management of combined heap and compiled code caches

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Embodiment Construction

[0022] Described herein are selected embodiments of an apparatus and methods for managing a combined heap and compiled code cache in a managed runtime environment. In the following description, numerous specific details such as types of virtual machines, programming languages, specific compilers, and order of control flow for operations of a method have been set forth to provide a more thorough understanding of the present invention. One skilled in the art will appreciate, however, that the invention may be practiced without such specific details. Additionally, some well-known structures, circuits, and the like have not been shown in detail to avoid unnecessarily obscuring the present invention.

[0023]FIG. 1 depicts an example managed runtime environment (“MRTE”) 100 capable of dynamically performing feedback-based management of a shared storage region 115 that includes both a heap 114 and compiled code cache 116. Each MRTE 100 runs on a processor with its own instruction set and an...

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Abstract

Disclosed are a method, apparatus and system for managing a shared heap and compiled code cache in a managed runtime environment. Based on feedback generated during runtime, a runtime storage manager dynamically allocates storage space, from a shared storage region, between a compiled code cache and a heap. For at least one embodiment, the size of the shared storage region may be increased if a growth need is identified for both the compiled code cache and the heap during a single iteration of runtime storage manager processing.

Description

RELATED APPLICATION [0001] This application is a divisional application of patent application Ser. No. 10 / 684,012, filed on Oct. 10, 2003.BACKGROUND [0002] 1. Technical Field [0003] The present disclosure relates generally to information processing systems and, more specifically, to managing a shared memory region for a heap and a compiled code cache in managed runtime environments. [0004] 2. Background Art [0005] Platform-independent high-level programming languages such as Java and C# have gained significant market presence, especially for network-based applications. Typically, programs written in these languages execute in a managed runtime environment (MRTE) that provides automatic memory management, type management, threads and synchronization, and dynamic loading facilities. [0006] The automatic memory management provided by an MRTE typically includes management of a heap and management of a compiled code cache. A heap is an area of memory reserved for the dynamic memory alloc...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06F12/00G06F9/45G06F12/02G06F12/08
CPCG06F9/45516G06F12/0875G06F12/0269
Inventor LEWIS, BRIAN T.
Owner LEWIS BRIAN T
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