JIT in PHP8 can improve code performance by more than 20%

JIT in PHP8 can improve code performance by more than 20%

Recently, PHP8 announced the launch of the JIT compiler (Just-in-time). According to tests, JIT can improve PHP code performance by 20% above. This is very good news for PHP developers and enterprises.

What is JIT?

JIT (just-in-time compiler) is a high-performance compiler that can convert source code into machine code in real time, thereby improving program execution efficiency. Unlike traditional compilers, the JIT compilation process is performed while the program is running. This compilation method allows JIT to dynamically optimize and adjust the code according to the actual running conditions, thus greatly improving the performance of the program.

JIT in PHP8

In PHP8, JIT is enabled by default and can be optimized by changing the code. Unlike previous versions, in PHP8, the JIT can compile the entire PHP code instead of just function code. This has greatly improved the performance of JIT.

According to testing, using JIT can improve the performance of the code by more than 20%. For large projects and high-traffic websites, this performance improvement will be very significant in improving user experience and running speed.

Advantages

Using the JIT compiler has the following advantages:

1. Improving performance: JIT can compile the code while the program is running, thereby optimizing according to the actual situation , and can compile the entire PHP code, thus greatly improving the performance of the program.
2. Accelerate startup speed: The JIT compiler can compile when starting the program, thereby speeding up the startup speed of the program.
3. Reduce memory usage: JIT can optimize the code according to the actual program running conditions, thereby reducing the memory required when the program is running.
4. Facilitates code debugging: JIT can dynamically adjust the execution mode and optimization strategy of the code, making it easier for programmers to debug the code.

Conclusion

The emergence of the JIT compiler is very good news for PHP developers and enterprises. It can improve the performance and running speed of the code, reduce memory usage, and speed up the startup speed of the program. Although the JIT compiler has some disadvantages, such as increased compilation time, the advantages it brings greatly outweigh these disadvantages. For PHP projects that require high performance, using a JIT compiler is a good choice.

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