https://jasper-aa64.github.io/tags/bandwidth/Recent content in Bandwidth on JasperHugoen-usFri, 09 Oct 2026 00:00:00 +0000https://jasper-aa64.github.io/posts/low-latency-memory-latency-bandwidth/Fri, 09 Oct 2026 00:00:00 +0000https://jasper-aa64.github.io/posts/low-latency-memory-latency-bandwidth/One memory access takes about 100 ns and brings back 64 B. One at a time, that’s 0.64 GB/s, yet one core reading sequentially gets 15–60 GB/s. The missing factor is the number of requests in flight. Whether the next load’s address has to wait for this load decides whether your code is latency-bound or bandwidth-bound.