Go Memory Performance: The Power of sync.Pool
Many Go developers have previously doubted the performance benefits of sync.Pool. Skeptical questions like “Is it really that fast?” or “Do I need it for small projects?” have been common. However, benchmarks in real-world scenarios clearly demonstrate that sync.Pool is by no means an overrated tool. Benchmark Setup: Realistic Workloads This analysis was performed under the following conditions: Allocation Method: Slice-based buffers (most common in Go) Batch Size: 1,000 objects allocated and returned per iteration Allocation Size: 32 bytes to 131,072 bytes (7 stages) Concurrency: GOMAXPROCS=1 (single-threaded) vs GOMAXPROCS=8 (8 P parallel processing) Crucially, buffers were stored in reusable slices to reflect the cache efficiency of pools in actual applications. ...