Debug and Release configuration in the programming environment are mainly the difference in compile code. In the debug mode, the compiler focuses on providing debugging information; and in the Release mode, it gives priority to performance optimization.
The JIT compiler used in the release version performs various optimizations, including:
Inner United: Use an embedded code replacement method to avoid calling expenses.
Although the optimization of the release mode has significantly improved performance, they rarely affect the reliability of the code. The JIT optimizer has been widely tested and is usually reliable. However, due to the difference in subtle implementation, a specific code mode involving a structure or floating -point computing may sometimes occur in the Release version. Conclusion
The performance differences between
Debug and the Release version may be very large, especially for code that repeatedly executed on the key execution path. However, the reliability of the Release version is usually very high, and most of the code running in the debug mode can also work normally in the release mode.The above is the detailed content of How Much Faster Are Release Builds Compared to Debug Builds?. For more information, please follow other related articles on the PHP Chinese website!