<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Littles-Law on Jasper</title><link>https://jasper-aa64.github.io/zh/tags/littles-law/</link><description>Recent content in Littles-Law on Jasper</description><generator>Hugo</generator><language>zh-CN</language><lastBuildDate>Fri, 09 Oct 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://jasper-aa64.github.io/zh/tags/littles-law/index.xml" rel="self" type="application/rss+xml"/><item><title>低时延交易 —— 内存延迟与带宽</title><link>https://jasper-aa64.github.io/zh/posts/low-latency-memory-latency-bandwidth/</link><pubDate>Fri, 09 Oct 2026 00:00:00 +0000</pubDate><guid>https://jasper-aa64.github.io/zh/posts/low-latency-memory-latency-bandwidth/</guid><description>一次内存访问约 100 ns、运回 64 B，一次一个只有 0.64 GB/s，可一个核顺序读能拿到 15–60 GB/s，差出来的倍数就是同时在路上的请求数。下一次读的地址要不要等这一次读回来，决定了代码受延迟还是受带宽限制。</description></item></channel></rss>