Questions tagged [yourkit]

YourKit is a CPU and memory profiling tool for Java and .NET

YourKit is a CPU and memory profiling tool for Java and .NET

120 questions
0
votes
1 answer

How to enable j2ee statistics in yourkit

I am using trying to use yourkit for profiling an application deployed on JBoss. Using this tutorial https://www.yourkit.com/docs/demo/JavaEE/JavaEE.htm I created a .bat file to start the JBoss with Yourkit agent. Unfortunately I cannot find in the…
Ivajlo Iliev
  • 303
  • 1
  • 3
  • 19
0
votes
1 answer

What does it mean Objects Retained by Inner Class Back References

newbi using profiler, I am using yourkit. I see in inspections possible memory leak Objects Retained by Inner Class Back References Find objects retained via synthetic back reference of its inner classes. Problem: Such objects are potential memory…
igx
  • 4,101
  • 11
  • 43
  • 88
0
votes
0 answers

Yourkit cpu sampling

sorry I can't paste the code here but I'm using yourkit to cpu sampling for my app and I see the following: 11.0.10 - 120.347: warning: NULL class name 11.0.10 - 120.348: java.lang.invoke.LambdaForm$MH 11.0.10 - 153.824: Snapshot captured:…
Theboy
  • 353
  • 1
  • 2
  • 8
0
votes
2 answers

yourkit cpu view and top command - showing different results

I am looking at my process via top command and it shows very high value on the CPU%. however when I look on the same process via yourkit cpu view it shows completely different result. how can it be ?
igx
  • 4,101
  • 11
  • 43
  • 88
0
votes
1 answer

CPU Usage on Sample meaning as well getting exact state time on Your Kit

I am profiling one app via Your kit profiler but unable to interpret following 2 things in Threads tab of Your Kit. CPU usage on sample time shows 191ms, just want to clarify Thread state was determined to be Sleeping, is their any means by which…
tarunkumar
  • 861
  • 2
  • 15
  • 30
0
votes
1 answer

YourKit - What does finished Thread mean?

I am using YourKit to profile my web application. If there is a Java thread listed on Yourkit's Threads-view and that one is also marked as finished, does it mean that the thread is finished but the thread-object is still present (not removed by…
Philipp Li
  • 499
  • 6
  • 22
0
votes
1 answer

Yourkit profile save snapshot file before shutdown

I use YourKit profiler on linux on a UAT server as an agent. The configs are: agentpath:/home/build/libyjpagent.so=sampling,monitors,delay=25200000 The .snapshot file is save only when I shutdown the application. How can I get the snapshot without…
user1995187
  • 393
  • 5
  • 18
0
votes
1 answer

Time taken during memory profiling using yourkit

How much time does it generally take to profile a java application which is at about 100G memory consumption on a 150G machine? I started profiling about 2 hours back and its only 20% done as of now. Total memory used by jvm since I started…
Rishi Kesh Dwivedi
  • 643
  • 2
  • 7
  • 15
0
votes
1 answer

YourKit allocation tracing

I'm profiling an application with a YourKit profiler, and there's something which baffles me. Allocation tracing is on, with stack recording, for each 100th object. At the %application%->memory->allocations view there are, say, 20k objects…
Jeor Mattan
  • 475
  • 3
  • 10
0
votes
1 answer

Yourkit prolonging STW-pauses in minor GC-collections?

We've started monitoring our application with Yourkit, version 11. Since we did, we sometimes observe very strange behaviour. Minor garbage collections sometimes cause stop-the-world pauses longer than two minutes.
Jonathan
  • 2,698
  • 24
  • 37
0
votes
0 answers

How to explain req/s difference between yourkit and gatling

I use gatling to make some performance tests. On gatling report, I see a mean req/s : 80 but on yourkit performance charts, I see JSP/Servlet request count 300 req/s Why is there such a gap between both figures ?
Yann Moisan
  • 8,161
  • 8
  • 47
  • 91
0
votes
1 answer

YourKit Profiling and Line Numbers

I am using the YourKit Java profiler to find CPU hogging spots in some Java code. I do not have the original source code for the Java classes, so I have been decompiling it to see what needs to be fixed. The line numbers on decompiled code (using…
Sameer Puri
  • 987
  • 8
  • 20
0
votes
1 answer

Java Imports, Assembly (Krakatau), and Source Code

So here's my situation: I am running a Java Client/Server architecture that has high CPU usage and I'm trying to reduce the lag time on the main "server" thread. I have been profiling the server with YourKit to identify the CPU-hogging code. The…
Sameer Puri
  • 987
  • 8
  • 20
0
votes
0 answers

Exception Access Violation in JRE

I am getting following exception sometimes while running a simple java application which doesnt uses JNI. I have used different versions like 1.6, 1.7.0_47 and 1.7.0_67 to check if it works fine with them. But it doesnt work. I am experiencing this…
Amit Verma
  • 167
  • 1
  • 3
  • 8
0
votes
1 answer

Playframework thread pools

I'm profiling a playframework 2.2.3 application with YourKit to try and troubleshoot some performance issues. This is not my application and I am not familiar with play 2. The application is a multi-player social game that utilises web sockets. It…