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Fixed #197 优化useGlobalCache中频繁调用useEffectCleanupRegister导致内存过多占用的问题 #198

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@langzhi827 langzhi827 commented Sep 27, 2024

Summary by CodeRabbit

  • Bug Fixes
    • 修复了 fullPathStr 变量在组件渲染中的不一致性问题,确保其在多个渲染之间保持稳定。

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coderabbitai bot commented Sep 27, 2024

📝 Walkthrough
📝 Walkthrough

Walkthrough

此次更改涉及在 useGlobalCache 函数中引入 React.useRef 钩子,以创建 fullPathStr 变量的稳定引用。之前,fullPathStr 直接赋值为 pathKey(fullPath) 函数调用的结果。现在,fullPathStr 被赋值为 stableFullPathStr.current,该引用保持 pathKey(fullPath) 的值,确保 fullPathStr 在组件的多次渲染中保持一致。这一调整影响了 fullPathStr 在组件中的使用,特别是在与 register 变量的初始化相关时。

Changes

文件 更改摘要
src/hooks/useGlobalCache.tsx 引入 React.useRef 钩子以创建 fullPathStr 的稳定引用,确保其在组件渲染中的一致性。

Sequence Diagram(s)

(此部分不适用,因为更改过于简单,未提供可视化流程的必要性。)

Poem

🐇 在代码的世界里,变化如风,
引入稳定,路径更通。
兔子欢跳,欢庆新生,
每次渲染,皆是新梦。
代码如歌,乐在其中! 🎶


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Files that changed from the base of the PR and between 662c450 and 549e921.

📒 Files selected for processing (1)
  • src/hooks/useGlobalCache.tsx (1 hunks)
🚧 Files skipped from review as they are similar to previous changes (1)
  • src/hooks/useGlobalCache.tsx

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Actionable comments posted: 0

🧹 Outside diff range and nitpick comments (1)
src/hooks/useGlobalCache.tsx (1)

Line range hint 1-124: 总结和建议

这个改动通过引入 React.useRef 来优化 useGlobalCache 钩子,有效地解决了内存占用问题。这是一个很好的性能优化,符合 PR 的目标。

然而,为了确保代码的稳定性和可靠性,我建议:

  1. 添加单元测试,特别关注 fullPathStr 的稳定性及其对组件行为的影响。
  2. 进行性能基准测试,量化内存使用的改善情况。
  3. 考虑添加注释,解释为什么使用 useRef 以及它如何解决内存问题,这将有助于未来的代码维护。

最后,建议在合并此 PR 之前,让团队中的另一位开发者进行代码审查,以获得额外的洞察和反馈。

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

📥 Commits

Files that changed from the base of the PR and between be4e05b and 662c450.

📒 Files selected for processing (1)
  • src/hooks/useGlobalCache.tsx (1 hunks)
🔇 Additional comments (1)
src/hooks/useGlobalCache.tsx (1)

26-27: 优化看起来不错,但需要进行全面测试

这个改动通过使用 React.useRef 来创建 fullPathStr 的稳定引用,很好地解决了频繁调用 useEffectCleanupRegister 导致内存过多占用的问题。这种优化可以减少不必要的重渲染和函数调用,从而提高性能。

然而,为了确保这个改动不会引入任何意外的副作用,建议进行以下验证:

  1. 全面测试组件的行为,确保 fullPathStr 的稳定性没有影响其他依赖于它的逻辑。
  2. 进行性能测试,验证内存占用是否如预期那样减少。
  3. 检查是否有其他地方依赖于 fullPathStr 的动态性,如果有,可能需要相应调整。

您可以运行以下脚本来检查 fullPathStr 在代码库中的其他用法:

如果脚本没有输出结果,说明 fullPathStr 只在当前文件中使用,改动的影响范围有限。

@afc163 afc163 requested a review from MadCcc September 27, 2024 09:53
@langzhi827
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求能尽快merge代码😄

return _fullPathStr;
}
return stableFullPathStr.current;
}, [fullPath]);
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fullPath 每次 render 都是在上面的 fullPath = [prefix, ...keyPath] 重新组合,这个 useMemo 的 deps 永远都不会命中。

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+1,如果想要用 useMemo 来优化代码,deps 应该放 fullPath 本身而不是 [fullPath]
另外不太理解为什么缓存 join 会影响内存占用,理论上 useMemo 反而会导致内存占用增加。

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