AheadOfTimekompilering

Ahead-of-time compilation, often abbreviated as AOT compilation, is a compilation strategy that translates source code into machine code or an intermediate representation during the build process, rather than at runtime. This contrasts with just-in-time (JIT) compilation, where compilation occurs dynamically as the program is executing. The primary benefit of AOT compilation is improved runtime performance. Because the code is already compiled into native machine instructions before execution begins, the overhead associated with runtime compilation is eliminated, leading to faster startup times and potentially higher execution speeds. This can be particularly advantageous for applications where low latency and predictable performance are critical, such as in embedded systems or high-performance computing.

However, AOT compilation can also lead to larger executable sizes, as all possible code paths may need to be compiled. Furthermore, it can reduce the flexibility of dynamic language features that rely on runtime code generation or modification. The decision to use AOT compilation often involves a trade-off between startup performance and execution speed versus binary size and dynamic capabilities. Many modern programming environments and frameworks offer options for both JIT and AOT compilation to cater to different application requirements.