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Improve startup performance

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难度
5/5
预计耗时
一周以上
新手友好度
25/100
Issue 类型
功能
描述清晰度
需要澄清
活跃度
停滞
技术栈
java

调研方向

首先审查 PR #1300 以及关于 ExecutorService 和共享线程池管理器的引用讨论。确定要采用的集中式启动并发方案,并明确哪些初始化任务可以移出主线程。完成的标准是:启动过程变得响应迅速,且不引入临时线程,同时为此次更改提供性能证据。

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描述

paused

PDE startup is slow because much of the initialization work happens on the main thread, blocking the application from becoming responsive.

PR #1300 explored moving several initialization tasks to background threads and demonstrated that this can significantly improve startup performance. The PR was ultimately closed in favor of revisiting startup concurrency with a more centralized approach, rather than introducing multiple ad-hoc threads in startup code.

Relevant quotes:

@tychedelia: “Have you considered using an ExecutorService instead of manually creating all the threads? That could provide better control or allow thread reuse particularly for tasks that are small.”

@catilac: “If there is a thread pool manager we can use to manage threads we should use that. I'd prefer we not introduce the use of low-level concurrency primitives on the app startup code paths.”

I'm opening this issue to capture these insights, so startup performance work can be revisited later.

主要语言
Java
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4 小时 39 分钟
30 天内合并 PR
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