Noallocs

Noallocs refers to code or a programming technique that aims to avoid dynamic memory allocation during runtime. Dynamic memory allocation, commonly performed using functions like malloc, calloc, or new, involves requesting memory from the operating system as needed. This process can incur overhead due to system calls and memory management, potentially leading to performance bottlenecks or increased latency.

By minimizing or eliminating dynamic allocations, noallocs strategies seek to improve performance, predictability, and resource utilization. This can be particularly beneficial in environments with strict real-time requirements, such as embedded systems, game development, or high-frequency trading platforms, where unpredictable allocation times can be detrimental.

Techniques to achieve noallocs include pre-allocating memory pools at startup, using stack-allocated variables, or employing custom memory allocators that manage a fixed block of memory. Static allocation, where memory is assigned at compile time, also falls under this umbrella. While noallocs can offer significant advantages, they often require more careful design and can sometimes lead to less flexible or more verbose code. The trade-off is typically between performance and development complexity.