Jit compilation
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JIT (Just In Time) compilation is a technique where source code is compiled to machine code during runtime rather than prior to execution. This allows optimizations to be performed based on how the code is actually used at runtime. The key benefits of JIT are that it can utilize dynamic information to optimize code and optimize dynamically loaded code. However, it also increases complexity and memory usage compared to traditional compilation prior to execution. Many modern frameworks like .NET and Java rely on JIT compilation to achieve high-speed code execution.
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Jit compilation
- 1. JIT (Just In Time) Compilation Mohammad Shahriar Reza #011132065
- 3. Interpreter y = 5 * z x = y+ z Display(x) 010101 101010 101001 Source Code Machine Code
- 4. Compiler y = 5 * z x = y+ z Display(x) 010101 101010 101001 Source Code Machine Code
- 5. Just-In-Time (JIT) Compilation x = y+ z y = 5 * z Display(z) 010101 101010 101001 A$B9Yt B$JAFL Y&HAID Source Code Machine CodeByte Code JIT Java, C#
- 6. Workflow of JIT Flow Analysis Method In- lining Exception Check Elimination Common Subexpression Elimination Loop Versioning Stack Analysis Native Code Generation Code Scheduling
- 7. Features for classification Concurrency Invocation Executability
- 8. Functioning Bytecode Execution 1 2 34 Interpretation Profiling Dynamic Compilation Deoptimization
- 11. Hotness •Importance of a piece of code •Frequently used code have higher hotness
- 12. Opt Compilation (Based on Dynamic Hotness) #Calls RunTime Opt time
- 13. Advantages Can utilize dynamic information to optimize Can optimize dynamically loaded/generated code Compilation is now a part of Execution time
- 15. Relies on JIT Compilation •Microsoft's .NET Framework •Most implementations of Java and C# Reason : For high-speed code execution
Editor's Notes
- 2