许多小部分占用大量时间来渲染，为什么，以及如何加快速度？

发布于 2024-12-03 04:35:41 字数 1159 浏览 1 评论 0原文

我有一些使用 javascript 滚动库来显示内容的“盒子”。该框包含 4 个可见的内容块，如下所示：

<div class="item nugget lesson">
  <h3>
    <a href="/en/dance_genres/22-authentic-jazz" title="Details and Information for 'Authentic Jazz'">
      Authentic Jazz
    </a>
  </h3>
  <div class="thumb">
    <a href="/en/dance_genres/22-authentic-jazz" title="Details and Information for 'Authentic Jazz'">
      <img alt="22" src="http://common-resources.idance.net.s3.amazonaws.com/images/model_resources/dance_genres/thumb/22.jpg">
    </a>
  </div>
  History: Grounded in vintage videos, the modern revival of ...
  <br>
  <a href="/en/dance_genres/22-authentic-jazz" title="Details and Information for 'Authentic Jazz'">
    <img alt="Lesson_view" src="/images/objects/lesson_view.png?1276105734">
  </a>
</div>

当我渲染超过 50 个这些部分时，rails 渲染加载时间明显很慢（超过 2 秒）。我已经优化了数据库查询中的 sh*% ，甚至添加了 counter_cache 字段，因此这并不是速度减慢的原因。

我不是在谈论浏览器中的负载，而是在谈论 Rails 处理时间。

请在此处查看加载时间：http://pastebin.com/pSrNSSsF

这正常吗？

原文

I have some 'boxes' that use a javascript scrolling library to display content. The box contains 4 visible content nuggets like this:

<div class="item nugget lesson">
  <h3>
    <a href="/en/dance_genres/22-authentic-jazz" title="Details and Information for 'Authentic Jazz'">
      Authentic Jazz
    </a>
  </h3>
  <div class="thumb">
    <a href="/en/dance_genres/22-authentic-jazz" title="Details and Information for 'Authentic Jazz'">
      <img alt="22" src="http://common-resources.idance.net.s3.amazonaws.com/images/model_resources/dance_genres/thumb/22.jpg">
    </a>
  </div>
  History: Grounded in vintage videos, the modern revival of ...
  <br>
  <a href="/en/dance_genres/22-authentic-jazz" title="Details and Information for 'Authentic Jazz'">
    <img alt="Lesson_view" src="/images/objects/lesson_view.png?1276105734">
  </a>
</div>

When I render more than 50 of these partials, rails rendering load time is noticeable slow (over 2 seconds). I've optimized the sh*% out of my db queries and even added counter_cache fields, so that is not the slowdown.

I'm not talking about load in the browser, but rails processing time.

Please see load times here: http://pastebin.com/pSrNSSsF

Is this normal?

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