CPU « profile « Java Testing Q&A

1. If you have a Java application that is consuming CPU when it isn't doing anything, how do you determine what it is doing?    stackoverflow.com

I am calling a vendor's Java API, and on some servers it appears that the JVM goes into a low priority polling loop after logging into the API (CPU at 100% ...

2. Looking for recommendations for end-to-end Java CPU Profilers    stackoverflow.com

What are some good end to end CPU profilers that exist for Java? Quick list of things I'm looking for:

1. Offline profiling - No user interaction or GUI required during program execution. Dumping ...

3. CPU load from Java    stackoverflow.com

Is there a way to get the current cpu load under Java without using the JNI?

4. Setting default profile CPU to true in Java VisualVM    stackoverflow.com

I want to use Java VisualVM to also profile the application even when it is starting. By default, it is set as false. Is there any way to change the profiling to ...

5. Java Profiling on Linux    stackoverflow.com

I have a fairly complex Java application that is utilizing a lot of CPU, and would like to know if there is any recommendation on a profile tool that I could ...

6. Java Profiling Tool for CPU consumption    stackoverflow.com

I have used JProfiler, JProbe, AppSight, YourKit for the finding out what code is consuming CPU. But YourKit looks better than others. Is there anything better ?

7. Java VisualVM giving bizarre results for CPU profiling - Has anyone else run into this?    stackoverflow.com

I have written this small (and brutally inefficient) class and wanted to profile it using the Java VisualVM.

public class Test {

    public static void main(String[] args) throws IOException ...

8. Java profiling: detect which piece of code causes high CPU load    stackoverflow.com

I profiled my code with both JProfiler and YourKit. However, I haven't been able to figure out how to detect which piece of code is responsible for high CPU load. It's trivial ...

9. profiling CPU usage for method utilizing reflection    stackoverflow.com

I'm trying to do some basic CPU profiling to determine why my GUI feels slow/laggy. I tried using visualVM to do a quick profile, and it shows one method using ...

10. Profile Java CPU load    stackoverflow.com

I need to profile the CPU load of a commercial Java app, of which I don't have the source. I can see that the app is CPU bound, but how can I ...

11. CPU usage problem profiling issues    forums.oracle.com

Hi, I've encounter a problem in my application (file server) that occurs sometimes in a production environment that i am having difficulty (do not know how) to reproduce otherwise. If i run hprof to see where all the CPU is in the production it starts with problematic CPU usage and hprof in any other environment does not help since i cannot ...