https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/Recent content in 原理剖析 on Elastic CodeHugo -- gohugo.iozh-cn© 2026 Elastic Codehttps://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/gmp/Mon, 01 Jan 0001 00:00:00 +0000https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/gmp/<p>参考：<a href="https://learnku.com/articles/41728" target="_blank" rel="noreferrer">https://learnku.com/articles/41728</a></p> <p><strong>Go 调度本质是把大量的 goroutine 分配到少量线程上去执行，并利用多核并行，实现更强大的并发。</strong></p> <h3 class="relative group">Go 线程模型 <div id="go-线程模型" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#go-%e7%ba%bf%e7%a8%8b%e6%a8%a1%e5%9e%8b" aria-label="锚点">#</a> </span> </h3> <p><figure><img class="my-0 rounded-md" loading="lazy" decoding="async" fetchpriority="auto" alt="" width="1734" height="1012" src="https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/gmp/static/ViGDb1hmso95TrxwDKycviLdnbb_hu_b1b40fad1334def6.png" srcset="https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/gmp/static/ViGDb1hmso95TrxwDKycviLdnbb_hu_b1b40fad1334def6.png 800w, https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/gmp/static/ViGDb1hmso95TrxwDKycviLdnbb_hu_b322c18b78ceeca6.png 1280w" sizes="(min-width: 768px) 50vw, 65vw" data-zoom-src="https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/gmp/static/ViGDb1hmso95TrxwDKycviLdnbb.png"></figure> </p> <h2 class="relative group">GMP 模型 <div id="gmp-模型" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#gmp-%e6%a8%a1%e5%9e%8b" aria-label="锚点">#</a> </span> </h2> <p><strong>线程是运行 goroutine 的实体，调度器的功能是把可运行的 goroutine 分配到工作线程上</strong>。</p>https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/Mon, 01 Jan 0001 00:00:00 +0000https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E5%86%85%E5%AD%98%E7%AE%A1%E7%90%86/https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E5%9E%83%E5%9C%BE%E5%9B%9E%E6%94%B6/Mon, 01 Jan 0001 00:00:00 +0000https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E5%9E%83%E5%9C%BE%E5%9B%9E%E6%94%B6/https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/Mon, 01 Jan 0001 00:00:00 +0000https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E6%95%B0%E6%8D%AE%E7%BB%93%E6%9E%84/<h2 class="relative group">字符串 String <div id="字符串-string" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e5%ad%97%e7%ac%a6%e4%b8%b2-string" aria-label="锚点">#</a> </span> </h2> <p>String 底层是 stringStruct</p> <div class="highlight-wrapper"><div class="highlight"><pre tabindex="0" style="color:#f8f8f2;background-color:#272822;-moz-tab-size:4;-o-tab-size:4;tab-size:4;-webkit-text-size-adjust:none;"><code class="language-sql" data-lang="sql"><span style="display:flex;"><span><span style="color:#66d9ef">type</span> stringStruct <span style="color:#960050;background-color:#1e0010">{</span> </span></span><span style="display:flex;"><span> str unsafe.point </span></span><span style="display:flex;"><span> len int </span></span><span style="display:flex;"><span><span style="color:#960050;background-color:#1e0010">}</span></span></span></code></pre></div></div> <p>String 与 []byte 的转换，会发生一次值拷贝</p>https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E7%A8%8B%E5%BA%8F%E5%88%9D%E5%A7%8B%E5%8C%96/Mon, 01 Jan 0001 00:00:00 +0000https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E7%A8%8B%E5%BA%8F%E5%88%9D%E5%A7%8B%E5%8C%96/<h2 class="relative group">程序初始化 <div id="程序初始化" class="anchor"></div> <span class="absolute top-0 w-6 transition-opacity opacity-0 -start-6 not-prose group-hover:opacity-100 select-none"> <a class="text-primary-300 dark:text-neutral-700 !no-underline" href="#%e7%a8%8b%e5%ba%8f%e5%88%9d%e5%a7%8b%e5%8c%96" aria-label="锚点">#</a> </span> </h2> <p>包内变量的初始化优先于 init 函数的初始化</p> <p>从被导入包的最深处开始初始化，层层递出一直初始化至 main 包</p>https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E9%80%83%E9%80%B8%E5%88%86%E6%9E%90/Mon, 01 Jan 0001 00:00:00 +0000https://my.elastic-code.com/zh/docs/go-%E8%AF%AD%E8%A8%80/%E5%8E%9F%E7%90%86%E5%89%96%E6%9E%90/%E9%80%83%E9%80%B8%E5%88%86%E6%9E%90/