timoheimonen/macOS-memory-benchmark

Low-level command-line tool for measuring CPU and Metal GPU memory bandwidth, synthetic LLM decode and prefill memory traffic, cache and main-memory latency, access-pattern performance, TLB behavior, and two-thread cache-line handoff protocol latency on Apple Silicon Macs.

5 best points · 4 comments · 2 Hacker News posts · 21 GitHub stars · View on GitHub

Hacker News discussions

• Show HN: On the edge of Apple Silicon memory speeds (5 points, 0 comments, by user_timo, 2026-01-17)
• Show HN:macOS Memory Benchmark for Apple Silicon (cache, bandwidth, latency) (2 points, 4 comments, by user_timo, 2025-12-20)