itextsharp barcode example vb.net PART III in Java

Drawing DataMatrix in Java PART III

PART III
Encode Data Matrix In Java
Using Barcode printer for Java Control to generate, create DataMatrix image in Java applications.
Data Matrix Recognizer In Java
Using Barcode reader for Java Control to read, scan read, scan image in Java applications.
FIGURE 16-6 Graph results from running the JMeter test
Make Barcode In Java
Using Barcode creator for Java Control to generate, create bar code image in Java applications.
Scan Bar Code In Java
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications.
Part III:
Generate Data Matrix In Visual C#.NET
Using Barcode encoder for .NET framework Control to generate, create Data Matrix ECC200 image in .NET applications.
Making DataMatrix In VS .NET
Using Barcode generation for ASP.NET Control to generate, create Data Matrix ECC200 image in ASP.NET applications.
Applying JavaServer Faces
Data Matrix Generation In VS .NET
Using Barcode generation for VS .NET Control to generate, create Data Matrix ECC200 image in .NET applications.
Draw ECC200 In Visual Basic .NET
Using Barcode generator for .NET Control to generate, create ECC200 image in Visual Studio .NET applications.
If possible, it s a good idea to run the JMeter invocation on another machine on the same LAN as the server, because running JMeter, the Tomcat server, the IDE, and the Profiler all on one machine may be too much to ask of the hardware, and it may skew test results unnecessarily When running JMeter on another machine, the HTTP Request Defaults node must be modified to include the IP address of the server on your LAN, instead of localhost as was used earlier This is accomplished by selecting the HTTP Request Defaults node underneath Jake s Basic Traversal and changing the Server Name or IP field appropriately JMeter also provides a very useful feature to drive several computers on a LAN to direct traffic to the same server This allows load testing at levels that exceed the network capacity of a single host The details of this exercise are beyond the scope of this section, but this feature is definitely good to know With the JMeter task safely relegated to another machine on the LAN, it s time to configure the NetBeans Profiler Before using the Profiler, a one-time automatic configuration process must be undertaken by choosing Profile | Advanced Commands | Run Profiler Calibration, then selecting the installed JDK to configure Once calibration is complete, start the server by choosing the Runtime tab in the navigator, expanding the Servers node, right-clicking the Bundled Tomcat node, and choosing Start in Profile Mode Choose OK on the dialog that pops up to start the server The server starts up and waits for the Profiler to attach, as shown next
DataMatrix Generator In Java
Using Barcode generator for Java Control to generate, create ECC200 image in Java applications.
Create UPC A In Java
Using Barcode maker for Java Control to generate, create GS1 - 12 image in Java applications.
16:
Linear 1D Barcode Encoder In Java
Using Barcode drawer for Java Control to generate, create Linear image in Java applications.
EAN-13 Generator In Java
Using Barcode generation for Java Control to generate, create EAN-13 Supplement 5 image in Java applications.
A u t o m a t e d Te s t i n g a n d D e b u g g i n g o f J a v a S e r v e r F a c e s A p p l i c a t i o n s
USD8 Printer In Java
Using Barcode encoder for Java Control to generate, create Code 11 image in Java applications.
Generating EAN 128 In None
Using Barcode printer for Microsoft Excel Control to generate, create EAN128 image in Office Excel applications.
Attach the Profiler by selecting Profile | Attach Profiler from the main menu A dialog appears that allows you to choose the profiling task The options are shown in Table 16-1 We will begin with Analyze Performance To best illustrate this feature, it is necessary to make a CPU-consuming change to a frequently called method in the Virtual Trainer so that the Profiler can show where the problem lies To do this, add the following code to the TrainingEventRegistry constructor
Making Code 128C In Visual Studio .NET
Using Barcode generator for Visual Studio .NET Control to generate, create Code 128A image in VS .NET applications.
Creating Data Matrix ECC200 In None
Using Barcode maker for Office Word Control to generate, create DataMatrix image in Word applications.
StringBuffer buf = new StringBuffer(1000); for (int j = 0; j < 20; j++) { bufdelete(0, 1000); for (int i = 0; i < 1000; i++) { bufappend("h"); String foo = null; try { foolength(); } catch (NullPointerException e) { foo = egetMessage(); } } }
Data Matrix ECC200 Creator In None
Using Barcode encoder for Excel Control to generate, create Data Matrix 2d barcode image in Excel applications.
Matrix 2D Barcode Encoder In Visual Basic .NET
Using Barcode generator for VS .NET Control to generate, create 2D Barcode image in .NET framework applications.
PART III
Painting GS1 - 13 In .NET
Using Barcode maker for ASP.NET Control to generate, create European Article Number 13 image in ASP.NET applications.
Decode DataMatrix In VS .NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in .NET framework applications.
Profiling Task Monitor Application
Description Provides a window displaying the high-level characteristics of the application as it runs, including heap size, amount of allocated heap space, number of threads, and thread status (running, waiting, and so on) Enables drilling down to a specific class or classes to get performance information about that class, including hotspots Chooses a particular segment of code to watch When that code executes, performance data is gathered and shown Shows statistics on object creation and garbage collection Enables creating and selecting a custom profiling configuration Useful when the previous configurations do not provide the desired behavior
Analyze Performance
Analyze Code Fragment Performance
Analyze Memory Usage Run Custom Profiling
TABLE 16-1 Pro ling Tasks in the NetBeans Pro ler
Part III:
Applying JavaServer Faces
From the Attach Profiler dialog, choose the Analyze Performance button Once this option is selected, change the Filter menu option to Quick Filter and the dialog box appears as shown here This feature enables only profiling classes from selected packages In this case, the Inclusive filter type is selected and the classes comjsfcompref*, comsunfaces*, javaxfaces*, javaxservlet*, and comsun faces* are selected to be profiled Click OK on the Set Quick Filter dialog, then choose Attach back on the Attach Profiler dialog Once the server has fully started, go over to the JMeter machine and start the tests It s possible to see live results by clicking the Live Results button in the Profiler tab, but the most useful thing to do is to wait for the JMeter test to complete, then shut the Tomcat server down and allow NetBeans to generate a summary report The Combined tab shows both call stack and method hotspots Hotspots are places in the code where much time is spent and which may be good targets for optimization In the following illustration, we have applied a filter to the hotspot view to only show comjsfcompref classes, revealing that the TrainingEventRegistry constructor is the culprit
16:
A u t o m a t e d Te s t i n g a n d D e b u g g i n g o f J a v a S e r v e r F a c e s A p p l i c a t i o n s
Another useful profiling metric is Analyze Memory Usage This allows the developer to see how many instances of each class are created during the test run of the application The usage of this metric is self-explanatory and need not be examined further here except to point out that it is very useful This section has only given you a taste of load testing and profiling of JSF applications, but it is a starting point from which to launch further learning
Copyright © OnBarcode.com . All rights reserved.