Real-time compiling system self-adapting adjusting and optimizing method

Abstract

The invention provides a real-time compiling system self-adapting adjusting and optimizing method which comprises the following steps: providing a resource library which is across application programs and is used repeatedly, wherein information in the resource library is separated to each running instance, and therefore the informations of all running instances in the resource library are not mutually affected; judging if the current running instance needs to gather relevant information of a real-time compiling process in an on-line mode, wherein a real-time compiling system writes in untreated runtime information to the resource library through a runtime information output, and / or reading the runtime information which is run across the application programs from the resource library; statically analyzing the gathered untreated runtime information in an off-line mode in the resource library to form a precalculated online running strategy; reading the precalculated online running strategy which is read and calculated from the resource library through a runtime optimizing strategy; confirming an optimization method of the real-time compiling system according to the precalculated online running strategy; and running application programs in an on-line mode combining an existing self-adapting optimizing system according to the confirmed optimization method.

Description

technical field [0001] The present invention relates to the field of computer technology, and more specifically, the present invention relates to a method for self-adaptive tuning of a just-in-time compilation system. Background technique [0002] In the Java programming language and environment, the just-in-time compilation (just-in-time compiler) system is a system that converts Java bytecode (including the program that needs to be interpreted) into a program that can be sent directly to the processor. program of instructions. When a Java program is written, the source language statements will be compiled into bytecodes by the Java compiler, rather than compiled into instruction codes corresponding to a specific processor hardware platform (for example, Intel's Pentium microprocessor or IBM System / 390 processors). Bytecode is platform-independent code that can be shipped to any platform and run on that platform. [0003] Just-in-time compilation optimization systems gen...

AI Technical Summary

Problems solved by technology

[0005] However, the existing just-in-time compilation systems generally have the following defects: on the one hand, the information that just-in-time compilation relies on is monitored and collected when the program is running, but when the program is executed, the information will be discarded directly, and the next time the program is executed When just-in-time compilation needs to re-monitor and collect the information needed for runtime optimization, the previously collected runtime information cannot be effectively used, wasting the opportunity to improve the performance of the existing information

Since just-in-time compilation of native code takes program runtime, it may take longer to compile more optimized code; and to compile more optimized code, the interpreter needs to help the compiler monitor the collection run time information, which also affects the speed of interpretation execution

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