> For the complete documentation index, see [llms.txt](https://hezhiqiang.gitbook.io/elkstack/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hezhiqiang.gitbook.io/elkstack/logstash/performance.md).

# 性能与测试

任何软件都需要掌握其性能瓶颈，以及线上运行时的性能状态。Logstash 也不例外。

长久以来，Logstash 在这方面一直处于比较黑盒的状态。因为其内部队列使用的是标准的 stud 库，并非自己实现，在 Logstash 本身源代码里是找不出来什么问题的。我们只能按照其 pipeline 原理，总结出来一些模拟检测的手段。

在 Logstash-5.0.0 中，一大改进就是学习 Elasticsearch 的方式，通过 API 提供了一部分运行性能指标！本节就会介绍这方面的内容。同时，作为极限压测的方式，依然会介绍一些模拟数据的生成和 JVM 指标观测方法。


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