I would recommend not only running the performance profiler when there is a performance related issue but making it a regular practice to run it after each significant code change to ensure there is no bottleneck in the application code.
Happy coding! View All. Performance Testing In Visual Studio Munib Butt Updated date Jun 25, As an example, for testing the performance profiler, I will be using the Web API application I created in a previous article that reads data from a local instance of Mongo DB. Open the solution and select Debug, Performance Profile It is better to run in Release mode for more accurate results as below,.
As you can see in the above screenshot, we have selected the CPU Usage tool. Now, with all pages visited, we can close the browser and quit the web api screen as below,. Counter sets that are useful when you analyze performance counter data. The counter sets are organized by technology such as Application,. You can create counter sets during the initial New Load Test Wizard or later on the load test file itself.
There is a set of predefined counter sets or you can create your own. You can also add counters to the default Counter Sets or to your own. The counters are added from Perfmon. Visual studio will collect data for every counter on a set for each computer where it is mapped to.
Run settings are properties that organize the manner in which a load test runs. You can have more than one run setting in a load test but only one can be active at a time while the other settings provide a quick way to select an alternative settings.
Settings are used to specify things like test duration, Logging, SQL server collection, warm up duration, sampling rate or validation setting between others. Check this article for full description of tasks available. Make sure your Load test is configure to run On premises by checking the General section of your active. Test Settings are not the same as Run Settings.
Other items to configure on this window are Roles and Timeouts. That dialog should show if the controller has any Test Agents connected to it. More information here: Manage Test Controllers. From that point forward you should be ready to run a Load Test.
During or after run time you have access to Graphs and Tables with throughput, response times information, performance counters for the computers you configured and details on vusers activity. Check this tutorial to learn more: Run and analyze your load test.
Visual Studio offers extendibility options to increase the built-in functionality. Follow the articles below to learn more about the different options:. Please feel free to ask questions in the Comments section of this blog post. I can try to answer them and add them to this FAQ. As mentioned above the recommendation is up to for a 2. This can change depending on the length of the webtests, the payloads of the application responses and the use of custom plug-ins.
The client Visual Studio machine uses a random port by default which is used to receive the test results from the test controller. For all incoming connections, the test controller authenticates the calling party and verifies that it belongs to specific security group.
This is true regardless of the test rig configuration you are using: on premises or cloud based testing:. You should create exceptions for the mentioned ports on the firewall, you can also change the port. You must be a registered user to add a comment. If you've already registered, sign in. The ability to create complex test scenarios with groups of users starting at different times, ramping up independently.
You can even make changes at run-time like increasing or decreasing the number of vusers on a specific script and know what each vuser is doing at a specific moment. There isn't another tool with these features out-of-the-box. It integrates well with SiteScope to monitor applications and HP Performance Center to schedule and pool resources to run multiple load tests in parallel. LoadRunner has the widest range of applications and protocols it can test.
LoadRunner protocols are libraries with custom functions that make scripting to test these technologies somehow easier and it requires less figuring out stuff as it would be with JMeter or VS.
Since it's a paid tool it comes with dedicated support, documentation, tutorials, etc. Supports Windows, Mac and Linux. It takes less time to setup and get started than other alternatives, notably JMeter. LoadRunner doesn't integrate well with third-party ALM tools.
It integrates with Jenkins for Continuous-release scenarios, however it is not a seamless integration. Recently, LoadRunner is also able to run JMeter, Selenium and Nunit scripts but it requires an interface library and some manual configuration. Limited scripting language support. Until it was Ansi-C only. After LoadRunner can also be scripted with JavaScript. Ansi-C is not a OOP language. Not only the software itself is costly, but the protocols web, citrix, SAP, etc.
JMeter This tool by Apache has been around since and gained popularity throughout the s, taking market share from LoadRunner mainly because it is a free, open-source alternative that can be expensively customized.
Pros: Price. It's free, which also means that is not supported by a proprietor. However it is also open-sourced and has very good community and industry support whom have extended and fixed bugs on it throughout the years. Compared to LoadRunner, there are no licenses for protocols or virtual users, you can simulate as many users as your infrastructure can handle.
It's large community support means that there is considerable training material, blogs, extensions, etc. It has a drag and drop declarative view for scripts, you can make changes to each request in a dialog interface. Which means that for simple test cases you don't need programming skills.. This somehow compared favorably with LoadRunner, but this feature is also offered by other tools e.
Visual Studio Cons: It is not the most user friendly tool, it is focused on the technology rather than making it easier to do things like defining an scenario based on business requirements or scaling the load. This can be improved with extensions created by the community and industry, these extensions are not free though. As mentioned before it has good support of third-party ALM tools.
It doesn't have an included out-of-the-box cloud load generation feature. Some people advertise that scripting is not essential on JMeter, this may be true for simple Database or API testing but for long workflow based test cases on complex Web applications that require correlations, parametrizations to handle logins, cookies, sessions, etc.
Although it has good community support, it doesn't have proprietor's support for bugs, an official knowledge base or dedicated support. Pros: Load Testing is embed into Visual Studio which makes it much more powerful than any other tool because it has access to VS features meant for developers such as line by line debugging, breakpoints, source control, collaboration, saving results to SQL, connections to databases, writing custom code, including external libraries, Nuget packages, creating extensions, customizing scenarios, management of cookies, sessions, etc.
Virtual User Licenses. Similar to JMeter, VS Load Tests doesn't charge extra for virtual user licenses or protocols, you are free to simulate as many users as your on-premise hardware supports. On that point, scaling is supported and easy to use and setup. You install an Agent software on the load generation machines and a Controller software to coordinate it all. The goal is to see how easily I can do quick load tests and Discover load and performance issues before your users do New Load Test Scenarios Scale realistic load tests up to , clients per test.
LoadFocus runs in the browser, so no need to install anything. This is the Web Performance Test file. Again, just in case this file does not appear, you can follow the following steps to create it. Otherwise just skip these steps. Steps to add a "Web Performance Test" file. Download offline Visual Studio offline installation package. IIS means you can publish Web pages, and I have an extensive ASP. I have been load testing the application extensively. Our goal is to support concurrent connections.
Once I reach around , the site does not respond. This cross-platform editor took over developers' popularity based on its fast and lightweight, supports a variety of programming languages with IntelliSense a feature that borrows from its sibling, Visual Studio IDE , and supports complete development operations like debugging Well, Visual Studio 's Load Testing tools can help you out. Performance testing your application consists of four parts: 1 create the tests for each use case; 2 convert the use case tests into Load Tests; 3 run large-scale Load Tests simulating hundreds of users using a Load Test Rig; and 4 analyzing the results and fixing any problems.
Step 5 - Pick Load Test Tool. Before writing your Tests we need to pick the right load testing tool. The following table illustrates some of the differences between functional and performance testing - it is important to realize that requirements will reflect The facts: Visual Studio will be the last version where Load Test and Coded UI will be available; Those customers using cloud-load testing functionality, this feature will not be available after 31 st March "Web performance and load test functionality in Visual Studio is deprecated.
In this tool, we can perform BPT Business process testing. Telerik Studio. It is modern web application which support functional test automation.
With the help of this tool, we can test the load, performance, and functionality of the web and mobile applications and also identify the cross-browser issues.
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