为什么VisualVM Profiler中不显示所有方法？ [英] Why aren't all methods displayed in VisualVM profiler?

问题描述

我正在使用 VisualVM 来查看我的应用程序运行缓慢的位置。但它没有显示所有方法，可能没有显示延迟应用程序的所有方法。

I am using VisualVM to see where my application is slow. But it does not show all methods, probably does not show all methods that delays the application.

我有一个实时应用程序（声音处理），并且时间不足几百微秒。

I have a realtime application (sound processing) and have a time deficiency in few hundreds of microseconds.

是否有可能 VisualVM 隐藏自己快速的方法？

Is it possible that VisualVM hides methods which are fast themselves?

UPDATE 1

我发现采样器和猜测的方法很慢。这是从调试日志中调用的 toString（）方法，该方法已关闭，但耗费时间。

I found slow method by sampler and guessing. It was toString() method which was called from debug logging which was turned off, but consuming a time.

设置帮助，现在我知道怎么看：它取决于开始来自选项的分析。

Settings helped and now I know how to see it: it was depending on Start profiling from option.

推荐答案

我现在面前没有它，但在开始分析之前，默认情况下会隐藏一个设置窗格，您可以输入正则表达式来过滤掉方法。默认情况下，它会过滤掉许多核心JDK内容。

I don't have it in front of my at the moment, but before you start profiling, there's a settings pane that's hidden by default and lets you enter regexes for filtering out methods. By default, it filters out a lot of the core JDK stuff.

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