<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Capacity on PlumePHP</title><link>https://plumephp.com/tags/capacity/</link><description>Recent content in Capacity on PlumePHP</description><generator>Hugo</generator><language>zh-CN</language><lastBuildDate>Mon, 28 Sep 2026 15:00:00 +0800</lastBuildDate><atom:link href="https://plumephp.com/tags/capacity/index.xml" rel="self" type="application/rss+xml"/><item><title>性能与成本优化：从缓存分层到资源治理的实战路径</title><link>https://plumephp.com/miniblog-performance-cost-optimization/</link><pubDate>Mon, 28 Sep 2026 15:00:00 +0800</pubDate><guid>https://plumephp.com/miniblog-performance-cost-optimization/</guid><description>&lt;p&gt;性能优化和成本治理是一枚硬币的两面：&lt;strong&gt;性能是「用户体验」，成本是「商业可持续」&lt;/strong&gt;。微型博客的典型痛点高度集中——时间线查询、互动计数、图片传输、实时推送。本文给出一条实战路径：先定 SLO（没有基线不谈优化），再逐层打透缓存、数据库热点、Redis 内存、图片 CDN、冷数据归档，最后落到容量规划与「性能-成本」的取舍方法论。&lt;/p&gt;</description></item></channel></rss>