What are the performance differences between JIT and AOT compilation?

What are the performance differences between JIT and AOT compilation?

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

Which one is better for large applications?

For large applications, AOT is often preferred due to its faster startup times and reduced runtime overhead. However, JIT can provide better performance for applications that require dynamic optimizations.

Are there any specific scenarios where JIT outperforms AOT?

Yes, JIT can outperform AOT in scenarios where the application benefits from runtime profiling and optimizations, such as in applications with varying workloads or those that heavily utilize dynamic features.

What about memory usage between the two?

AOT typically uses more memory upfront since it includes all compiled code, while JIT may use less memory initially but can increase memory usage during execution due to runtime compilation.