Performant Go Skill

Goal

Harnessing Go's concurrency primitives and runtime efficiency to build systems capable of handling millions of requests with minimal memory overhead.

Capabilities

1. Concurrency & Parallelism

• Goroutine Leak Prevention: Always ensure goroutines have a well-defined lifecycle and termination signal (using context.Context).
• Channel Optimization: Use buffered channels where appropriate to prevent blocking. Prefer select for non-blocking communication.
• Sync.Pool: Implement sync.Pool to reuse objects (like buffers or structs) and reduce Garbage Collector (GC) pressure.

2. Memory & Layout

• Memory Alignment: Structure fields in structs from largest to smallest to minimize padding and reduce memory footprint.
• Allocation Minimization: Use pointers to avoid copying large structs, but be mindful of "escape analysis" pushing objects to the heap.
• Pre-allocation: Always pre-allocate slices and maps using make([]T, 0, capacity) when the target size is known.