I'm looking for a tool which can profile the java application running as a windows service ( remotely/locally either way) .
I've come across VisualVM as one option. Are there any other products available other than VisualVm.I'm more interested in reputated product. Can Jprofiler do this for me?
VisualVM , Does it give class wise list of profiling ?
See this article, if you want to use Java VisualVM. It describes how java application running as a Windows service can be monitored and/or profiled using VisualVM.
JVisualVM is you best shot. It's free, comes with the JVM and gives you a pretty decent range of functionality. Not sure what you mean by "class wise list of profiling." But it will show you where the majority of your execution time is spent.
You can execute jvsiualvm by going to $JAVA_HOME/bin and typing jvisualvm. Then select the the vm you wish to profile.
You can use BTrace to instrument your application and to measure the parts of the application that you are interested in. BTrace logs its output to files, which you can later or in real-time transfer to a monitoring application, such as EurekaJ (which I've written myself).
Both tools are Open Sourced and free to use. BTrace uses the "GNU Public License v.2 w/Classpath Exception" license, while EurekaJ uses the GPLv3 license.
InfoQ Writeup on the two tool including VisualVM and a few commandline tools: http://www.infoq.com/articles/java-profiling-with-open-source
Link How can I monitor my Java application running as Windows Service with Visual VM? says that on recent Windows versions only JMX mode can be used, but not local.
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I have a headless Java application, running on a remote server as a daemon-style process.
I want to extract Java level profiling information from the process, of the sort displayed by JVisualVM. For example, it should show method invocation times and so on.
What is the best way of doing this? My understanding is that JVisualVM does not profile when connecting remotely.
Ideally, the profiling information would be stored in a file for later inspection, in a manner similar to Java heap generation (with jmap) and later analysis (with a heap inspector).
You can use NetBeans profiler remote profiling capability.
Remote Profiling
Profile an application that is running on a different system than your NetBeans IDE. The profiler's remote pack can be installed on a remote system, allowing you to profile an application that is started on that system.
In fact, VisualVM is based on it.
Beside various monitoring features, the tool contains a built-in profiler based on the NetBeans profiler. While the profiler UI in VisualVM looks simple (especially when compared to the NetBeans profiler), the profiling capabilities are almost as powerful as in NetBeans.
Here is a detailed blog post about Profiling a Java remote server using Netbeans.
According to the link you will have to set up jstatd and jmx:
http://javadevsoup.blogspot.de/2012/02/remote-java-profiling-using-visual-vm.html
I just found another product that I think does this: http://chrononsystems.com/products/chronon-recording-server
in java programs, running the programs with java profiler will generate profiling output
Ex- java -prof classfile_name
How to get same profiling output of java programs running on Tomcat?
I want to get an profiling output like this
count callee caller time , like this in profiling output
1 java.util.LinkedHashMap.init()V java.util.HashMap.(IF)V 0
Can you tell me how to get an output like this for programs running on Tomcat?
Tomcat is also just a Java application, so you can add the same VM parameters by defining the JAVA_OPTS environment variable in startup.bat/startup.sh of your Tomcat distribution.
However, I would really recommend to use a real profiler, there are several free and commercial alternatives. The major free one is visualvm and as a commercial solution I recommend JProfiler (disclaimer: my company develops that tool).
In those profilers, look for the "Hot spot" views which will show you the kind of information that you are looking for.
I have developed a nice multi-Threaded genetic algorithm in Java that runs on a 16-core system running CentOS with 128GB of RAM.
I want to use a code profiler to see if I can figure out which portion of the code is getting bogged down when I increase the number of mutations in my simulation beyond a certain point. Memory doesn't seem to be the issue.
So I installed VNC and Eclipse 3.6SR2 on the server and installed the TPTP plugin.
PROBLEM: The biggest issue is that it doesn't look like eclipse is using more than one core when I am doing the TPTP "execution time analysis" (I checked using 'top'). Normally when the program is run from the command line it uses as many cores as there are threads in the program.
Is there a way to fix this in the eclipse configuration?
Disclaimer: My company develops JProfiler
A profiler that uses JVMTI should not change the multi-core thread distribution with respect to a regular execution. TPTP may not be the best option for you.
There are several powerful Java profilers in the market. The most well-known free option is VisualVM and a commmercial alternative with much more powerful analytic capabilities in the area of multi-threading and monitor contention analysis is JProfiler - there's a fully functional free trial.
Get a real profiler like YourKit and add the agent to your application at startup.
Then you can open an SSH tunnel with the port where the agent is running and you can remotely profile your application. It has a quite good documentation and a healthy community in their forums. And in my opinion YourKit is great for multithreaded applications, I use it a lot.
No need for VNC and installing Eclipse on a production server.
Is there a way to remote start a CPU profiler (and specify package exclusions) like you can with the VisualVM tool (through I assume JMX).
We want to be able to automatically start a server run a stress test with a specific CPU profiler configuration enabled, and then export the results. Also is there any library that would allow you to parse the binary CPU profiler output (.nps file).
I think my best bet would be to dig through the VisualVM source code and see how they're doing it and copy that.
It appears that VisualVM uses some Netbeans library to do the parsing of the CPU profiler:
* org.netbeans.lib.profiler.results.cpu.StackTraceSnapshotBuilder
If a simple profiler is enough, you can integrate it into your application. I wrote one. It's also available with Apache license. I and my co-workers use it quite a lot. It's not perfect, but very easy to integrate.
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 use to determine the cause of the CPU utilization. My goal is to pinpoint the location in the code where it is using most of the CPU time.
I've used jProfiler and YourKit on Linux. But you might find the information you're looking for by running the jconsole that comes with recent JDKs. Good information on how to use it: http://java.sun.com/developer/technicalArticles/J2SE/jconsole.html
Netbeans has good built-in profiler. NB runs quite well on Ubuntu 9.10
If your issue cannot be observed in developement, you can attach the profiler to a remote JVM (your production environment). You have to configure the host JVM to accept the JMS/JConsole connections from the profilers. The JMS/JConsole realtime monitoring visualization charts look pretty awesome.
I have used Visual VM in the eclipse IDE. If you are not on an IDE, jhat and jconsole will help. Google jhat for more info
If you are comfortable with Eclipse, I'd recommend TPTP.
If you use Sun Java 6 then learn to use jvisualvm in the JDK on the machine running the troublesome program.
It will answer most of your questions, can attach effortlessly to an already running program and is gratis.
This method is low-tech but works best. Here's a short explanation why.
Since you are not running under an IDE, you can use pstack or lsstack to get stack samples. If the app is using lots more time than it should, then most likely the problem is one or a few rogue function calls, which will be clearly visible on most of the stack samples.