https://answer.freetools.me/tags/%E8%BF%9B%E7%A8%8B%E8%B0%83%E5%BA%A6/ Recent content in 进程调度 on Answer Hugo -- 0.152.2 zh-cn Sat, 07 Mar 2026 06:10:56 +0800 https://answer.freetools.me/%E4%B8%8A%E4%B8%8B%E6%96%87%E5%88%87%E6%8D%A2%E4%B8%BA%E4%BD%95%E5%A6%82%E6%AD%A4%E6%98%82%E8%B4%B5%E4%BB%8E%E5%AF%84%E5%AD%98%E5%99%A8%E4%BF%9D%E5%AD%98%E5%88%B0tlb%E5%A4%B1%E6%95%88%E7%9A%84%E5%AE%8C%E6%95%B4%E6%8A%80%E6%9C%AF%E8%A7%A3%E6%9E%90/ Sat, 07 Mar 2026 06:10:56 +0800 https://answer.freetools.me/%E4%B8%8A%E4%B8%8B%E6%96%87%E5%88%87%E6%8D%A2%E4%B8%BA%E4%BD%95%E5%A6%82%E6%AD%A4%E6%98%82%E8%B4%B5%E4%BB%8E%E5%AF%84%E5%AD%98%E5%99%A8%E4%BF%9D%E5%AD%98%E5%88%B0tlb%E5%A4%B1%E6%95%88%E7%9A%84%E5%AE%8C%E6%95%B4%E6%8A%80%E6%9C%AF%E8%A7%A3%E6%9E%90/ 深入解析上下文切换的真正代价，从寄存器保存、TLB失效到缓存污染，揭示为什么一个看似简单的操作会消耗数千个CPU周期。 https://answer.freetools.me/%E8%BF%9B%E7%A8%8B%E8%B0%83%E5%BA%A6%E4%B8%BA%E4%BB%80%E4%B9%88linux%E6%94%BE%E5%BC%83%E4%BA%86o1%E7%9A%84%E5%AE%8C%E7%BE%8E%E6%97%B6%E9%97%B4%E5%A4%8D%E6%9D%82%E5%BA%A6/ Thu, 05 Mar 2026 16:46:42 +0800 https://answer.freetools.me/%E8%BF%9B%E7%A8%8B%E8%B0%83%E5%BA%A6%E4%B8%BA%E4%BB%80%E4%B9%88linux%E6%94%BE%E5%BC%83%E4%BA%86o1%E7%9A%84%E5%AE%8C%E7%BE%8E%E6%97%B6%E9%97%B4%E5%A4%8D%E6%9D%82%E5%BA%A6/ 从1991年Linus Torvalds写下的20行调度代码，到2023年EEVDF取代统治十六年的CFS，Linux进程调度器的演进揭示了操作系统中看似已"解决"的问题如何在多核时代重新变得复杂。本文深入剖析O(1)调度器为何失败、CFS如何用O(log n)换取公平性、以及EEVDF如何用虚拟截止时间解决延迟困境。