8 JProbe Introduction to This Guide 9 JProbe Documentation Suite that require a third-party application. The JProbe Profiler. Information about JProbeTM from Sitraka is available at http :// After JProbe is installed using the following. 09, 08 · Performance Zone · Tutorial. Like (2). Comment (34). Save. Tweet. k Views. Join the DZone community and get the full member.

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If we move along the object graph to the StockChartDataSource class, we can right-click on the reference and select Remove Reference from the pop-up menu to model the result if we changed our code to properly remove the reference. The JProbe Console is the common user interface launched as an individual application in the Jprob Suite from which you can analyze session data collected by the JProbe Analysis Engine.

JProbe 8.0: The Java code, memory, and coverage profiler is back

With this new capability, developers have the ability to conduct memory analysis and code coverage seamlessly in the Eclipse Java IDE. It is more of a question of how you value your time. JProfiler is not the prettiest tool you can find.

Since we cannot modify code in a third-party component, we can hide this information while we are analyzing the profiling data by right clicking on the node in the Call Graph window and selecting the Prune Subtree option. Tools, Fixes, and More. You will get the most benefit from analyzing profile data when you work with your application in terms of typical use cases.

By using filters to focus in on just a few key methods we ensure that we are only getting the detailed information on what is important at that time, rather than collecting a potentially overwhelming amount of data.

I took a few screenshots to show how simple yet powerful is JProfiler. Auto-Map Objects 80 Percent Faster. Our application is exhibiting long page load times and we would like to minimize the end user wait time. It displays the information while the program is running, as opposed to other tools I’ve used, where you have to stop the analysis to get some results. Wayne identifies the following differentiators: Integrating with popular Application Servers is a simple task with JProbe?

Now that we have a snapshot of the session data, we can look at many details regarding the loitering object in the Instance Tutroial View see Figure 5. As we remove the reference, the Memory Leak Doctor informs us that by removing this jprboe, the object can now be garbage collected see Figure 6-B.

TPTP is a good, solid, tool but it is not a simple one to install and use. Additionally, JProbe Profiler and JProbe Memory Debugger have a unique snapshot-differencing feature that allows you to compare the performance iprobe of code changes on your applications and the use of system resources such as processor and memory. As we perform the steps of the use case to request the stock charts, we can view the heap activity in the Heap Usage Window. Java Performance Tuning Newsletter.

A loitering object is an object that is determined to be reachable by the garbage collector, but is no longer in use by your application. In the LaunchPad, we select the pre-configured Application Server we are using and what classes we would tutoeial to analyze.

I downloaded JProfiler and installed it using the provided installer.

Not only does jprbe snapshot differencing allow us to verify that our code changes improved the performance of the application, it will also show us if our code changes adversely affected performance, which would be indicated by a positive value.

This brings us to the final step in our performance investigation: If your program creates an excessive number of objects, the Java heap will become larger, and garbage collection will take longer because there are more objects to evaluate. Once we end the use case in JProbe Memory Debugger, a snapshot of the session data is captured.

Tool Report: JProbe

I don’t need any special preparation or setup: While in the LaunchPad, we select the pre-configured Application Server we are using and what classes we would like to analyze. JProbe helps developers to understand what? Once we identify methods that are potential performance? Quest Software provides solutions that help companies detect, diagnose and resolve performance problems in J2EE applications.

We continue to perform the use case and navigate through four of our favorite stocks. Get the most out of the InfoQ experience. View an example Enter your e-mail address. For now, we will just hide this information and proceed with investigating the performance characteristics of our own code. Again, we open the snapshot file and see that the application is spending the most time in assignData exclusive of the methods that assignData calls.

When we start our initial performance analysis, we want to get an overview of our application code at a method level to identify methods that may be performance bottlenecks. You will be sent an email to validate the new email address. You need to Register an InfoQ account or Login or login to post comments. We can also use the Snapshot Difference Window to show us that the total performance gain that is visible to the end user is 4, ms I had to look elsewhere.

JProfiler: Your Java Code Could be Running Faster in Under Two Hours

The profiling interface provides the hooks that the JProbe Analysis Engine needs to collect data. Going into the profile settings, you get an assortment of configuration options:. The Heap Usage Window allows you to jproe snapshots of the session data for later tutoria, as well as manage the display of runtime data see Figure 9.

Most garbage collection investigation is performed while working with JProbe Memory Debugger in real-time. Your source of Java performance news.

Other areas that JProbe Profiler can tutorual you in is identifying long running methods in third-party components as well as identifying inefficient interactions with JDBC classes such as long running SQL commands and inefficient result set processing. In addition to requesting jporbe collection, you can view the individual object counts and the amount of memory currently allocated per class. This graph is updated every 5 seconds while the program executes.

Data collected by the JProbe Analysis Engine can be viewed in real-time or stored in snapshot files for analysis at a later time. Wayne characterized the new release as follows:. JProbe Memory Debugger can monitor sessions in jproeb and capture snapshots for analysis at a later time. See the “Memory Released” column of the highlighted line in Figure 3.

Java Performance Tuning, 2nd ed. The tool collects a small amount of information including the IDE to integrate with and specific configuration information for the IDE selected.