All Questions
235 questions
4
votes
1
answer
98
views
How to combine ClassTransforms in the new Java 22 ClassFile Preview API
This is a very specific question regarding a very new feature. For context: I am writing my Bachelor Thesis about Runtime Code Generation in Java, and I'm working on a prototype for a profiler where I ...
0
votes
1
answer
504
views
Android Studio profiler and app inspection dosn't detect device
With the previous version of Android Studio everything was working fine, but now that I updated to JellyFish my app process isn't detected and no device is shown in the inspection and profiler.
I can ...
- 542
0
votes
1
answer
174
views
How to Setup Netbeans Profiler for Payara server deployed in remote windows host?
These are the instructions from Netbeans 16 when I try to setup a remote profiling for Manually Started remote Java Process.
Step 1: Make sure the target application is configured to run using Java 6+....
1
vote
0
answers
94
views
Profilers not able to take heap/thread dump
I have a Java desktop application which hangs at-times while running a scenario.
I tried to take heap and thread dump for analysis.
Up until the application hangs I am able to take the heap and thread ...
- 1,432
2
votes
1
answer
179
views
Meaning of 'Timeout' column in Socket I/O event logs of Java Flight Recording
In one of our java application, we are seeing that some external calls to a particular DNS observe increasing network latency (99th percentile), while network latency for rest of the DNS are normal. ...
- 403
0
votes
0
answers
72
views
Profiling java application
I have a problem with my spring boot application.
I have a rest controller that sends some http request by apache httpclient.
So when I load 1000 req/s to my controller I get answer after 1ms (in ...
- 165
5
votes
0
answers
3k
views
IntelliJ IDEA Profiler error: Failed to generate a profiler dump: check that the JVM supports profiling
Any ideas how to set up a Kotlin project that that we can use a profiler? I don't really care which profiler is used (though looking for both memory and CPU profiling).
I've tried changing JVM ...
- 8,340
0
votes
0
answers
772
views
Android Profiler: huge memory consumption, tagged as "Others", that doesn't get garbage collected
I wrote a simple app that does three simple things: matches regex, perform OCR and use openCV to preprocess the image for a better OCR result.
For preprocessing the image I am using openCV.
For the ...
- 924
0
votes
0
answers
228
views
Netbeans Profiler output shows "The syntax of this command is incorrect."
I am trying to profile my Java with Maven project named "profilerTest" using Netbeans profiler, but when I attempt to profile my project the progress window gets stuck at "Connect to ...
- 105
0
votes
2
answers
327
views
Android Runnable - Thread goes in sleeping state once code is executed, does not terminate
I am creating a thread pool for running operations in background in an android app.
Following is the code to create the thread pool and perform operations. Thread pool will be created only once but ...
- 2,557
1
vote
1
answer
1k
views
Java Native Memory 'Other' section consumes a lot of memory
Prerequisites
Application is run in docker-container with Java openjdk version "13.0.1" with these options:
-Xmx6G -XX:MaxHeapFreeRatio=30 -XX:MinHeapFreeRatio=10 -XX:+...
- 13
1
vote
1
answer
632
views
Measure memory consumption with all HttpSessions in Tomcat at an arbitrary point in time
I want to measure the percentage of memory used by HttpSession in a web application.
Is there any way to measure memory consumption with all HttpSessions in a running Tomcat instance at an arbitrary ...
- 2,264
1
vote
1
answer
945
views
Understanding JProfiler CPU Profiling
I am trying to understand how CPU profiling works in JProfiler and for that I created a very simple Rest Service as shown below:
@RestController
public class AlertsService {
private static final ...
- 1,069
0
votes
1
answer
94
views
Difference in CPU usage statistics
Machine: MacBook
Java 1.8
➜ [~] sysctl hw.physicalcpu hw.logicalcpu
hw.physicalcpu: 6
hw.logicalcpu: 12
I was debugging a java application using VisualVM and was unable to figure out the following. ...
- 3,080
4
votes
1
answer
15k
views
Checking Run time in IntelliJ IDEA Ultimate
Can I use InteliJ Ultimate's profiler to see how long it takes for a method to be executed?
- 53