What are the performance trade-offs between JIT and AOT compilation?

What are the performance trade-offs between JIT and AOT compilation?

JIT (Just-In-Time) compilation optimizes code at runtime, which can lead to faster execution for long-running applications. AOT (Ahead-Of-Time) compilation, on the other hand, compiles code before execution, resulting in faster startup times but potentially less optimization.

Can you explain when to use JIT over AOT?

Use JIT when you need maximum performance for long-running applications or when the execution context can change frequently. AOT is better for applications where startup time is critical, like mobile apps.

What are some examples of languages that use JIT and AOT?

Languages like Java and C# typically use JIT compilation, while languages like C and Go often use AOT compilation.

Are there any hybrid approaches?

Yes, some environments use a hybrid approach, combining both JIT and AOT to leverage the benefits of both methods, like the .NET runtime.