<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Clwb on Jasper</title><link>https://jasper-aa64.github.io/zh/tags/clwb/</link><description>Recent content in Clwb on Jasper</description><generator>Hugo</generator><language>zh-CN</language><lastBuildDate>Tue, 20 Oct 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://jasper-aa64.github.io/zh/tags/clwb/index.xml" rel="self" type="application/rss+xml"/><item><title>低时延交易 —— 缓存案例：一次行情重算 64 个期权</title><link>https://jasper-aa64.github.io/zh/posts/low-latency-cache-case-study/</link><pubDate>Tue, 20 Oct 2026 00:00:00 +0000</pubDate><guid>https://jasper-aa64.github.io/zh/posts/low-latency-cache-case-study/</guid><description>一条行情要碰 140 条缓存行，时间大多花在等它们。四步改的都不是计算，是数据什么时候到、到哪一层、在谁手里：让缺失同时在路上，提前要下一批，交出读一次就没用的行，跨核交接时少读一次，把要给对面读的行先放进 L3。</description></item></channel></rss>