What are the performance differences between AOT and JIT compilation?

What are the performance differences between AOT and JIT compilation?

AOT (Ahead-of-Time) compilation compiles code before execution, leading to faster startup times. JIT (Just-In-Time) compilation compiles code during execution, which can optimize performance based on runtime data.

Can you explain how AOT affects memory usage compared to JIT?

AOT typically uses more memory upfront since it compiles all code before execution. JIT can use less memory initially but may increase memory usage during execution as it compiles code on-the-fly.

Which one is better for mobile applications?

AOT is often better for mobile applications due to its faster startup time and lower runtime overhead, which is crucial for performance on devices with limited resources.

Are there any scenarios where JIT might be preferred?

Yes, JIT can be preferred in scenarios where runtime optimizations are critical, such as applications that require dynamic code execution or have varying workloads.