Smart Contract Execution Optimization

Smart Contract Execution Optimization

Main Content

Overview of Blockchain and Smart Contracts

Smart Contract Execution Methods: Compiled Execution and Interpreted Execution

Advantages of Interpreted Execution: Cross-Platform Portability

Disadvantages of Interpreted Execution: Low Execution Efficiency

JIT Compilation Technology: Balancing Portability and High Performance

The Core of JIT Compilation Technology: Hotspot Analysis and Compilation Optimization

Ethereum Virtual Machine (EVM) and Smart Contract Execution

Applying JIT Compilation Technology to EVM to Optimize Smart Contract Execution Efficiency

Using Hotspot Identifiers to Mark Key Codes to Improve Execution Efficiency

Short Answer Questions

Briefly describe the difference between blockchain 1.0 and blockchain 2.0.

What is a smart contract? What are its characteristics?

Explain the concepts of "compiled execution" and "interpreted execution".

What are the advantages of interpreted execution? What are its disadvantages?

What is JIT compilation? What is its core idea?

How does JIT compilation improve program execution efficiency?

Briefly describe the role of "hotspot analysis" in JIT compilation.

What is "compiled optimization"? What is its significance to JIT compilation?

Why does the Ethereum Virtual Machine (EVM) adopt the method of interpreted execution?

How does the method proposed by 543x.com solve the problem of smart contract execution efficiency?

Answer

Blockchain 1.0 is represented by Bitcoin, which mainly solves the problem of currency decentralization. Blockchain 2.0 is represented by Ethereum, which introduces smart contracts and expands the application of blockchain to areas other than currency.

Smart contracts are computer programs that are automatically executed based on pre-set rules and can be regarded as digital versions of traditional contracts. Its characteristics include automatic execution, non-tamperability, transparency and traceability, etc.

Compiled execution is to compile high-level language code into machine code for a specific platform at one time. Interpreted execution is to compile high-level language code into bytecode, and then interpret it one by one by the virtual machine.

The advantage of interpreted execution is strong cross-platform portability and no need to compile for different platforms. The disadvantage is that the execution efficiency is lower than compiled execution.

JIT compilation is a technology that combines the advantages of compiled execution and interpreted execution. Its core idea is to compile frequently executed code into machine code cache to reduce the overhead of repeated interpreted execution.

JIT compilation identifies hot code in the program through hot spot analysis and compiles it into machine code cache. The next time it is executed, the cached machine code is used directly to improve the execution efficiency.

Hot spot analysis is used to identify frequently executed code snippets in the program and provide optimization targets for JIT compilation.

Compilation optimization refers to optimizing the code during the compilation process to generate more efficient machine code. It can further improve the execution efficiency of the JIT compiled code.

EVM uses interpreted execution to ensure that the execution results of smart contracts on different nodes are consistent. Since the hardware and software environments of different nodes may be different, interpreted execution can shield the underlying differences.

The method proposed by 543x.com guides the JIT compiler to compile the identified code first and directly call the compiled machine code during execution, thereby improving the execution efficiency of smart contracts.

Key Glossary

Term Definition Blockchain A decentralized distributed database for recording transaction data. Smart Contract A computer program that is automatically executed based on pre-set rules. Compiled execution compiles high-level language code into machine code for a specific platform at one time. Interpreted execution compiles high-level language code into bytecode, which is then interpreted and executed by the virtual machine line by line. Virtual machine A program that simulates the hardware and software environment of a computer. JIT compilation is a technology that combines the advantages of compilation execution and interpretation execution, compiling frequently executed code into machine code cache. Hotspot analysis identifies frequently executed code fragments in the program. Compilation optimization optimizes the code during the compilation process to generate more efficient machine code. Ethereum Virtual Machine (EVM) is a virtual machine used by the Ethereum platform to execute smart contracts. Hotspot identifiers are identifiers used to mark code that needs to be compiled first.