Author: Ivan Lisitsyn

How to setup SNMP monitoring of a Windows system
General

How to setup SNMP monitoring of a Windows system

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SNMP (Simple Network Management Protocol) is a network protocol that allows one device to query another device for information, change information on a device, or for one device to send a message to another device. It is widely used to monitor hardware and software components of web sites during normal operations or during testing. That is why advanced load testing tools, such as WAPT Pro, usually have ability to connect to any servers and receive performance counters data (such as CPU or RAM usage values).

Older versions of Windows, like XP, had SNMP service installed by default, so you only had to start it or enable automatic start. After that you could connect to that system with any SNMP client and monitor anything you needed.

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How to setup Oracle monitoring in WAPT Pro
WAPT usage

How to setup Oracle monitoring in WAPT Pro

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WAPT Pro can monitor the performance of database servers during the test. This is useful in case your web application uses a database running on a separate server and you want to check if that database can be a performance bottleneck.

Each database has a special table with performance parameters (such as the number of transactions completed per second, number of threads, etc.). To retrieve any specific parameter you need to execute the corresponding SQL statement. So, this is done the same way as any other data retrieval. The only difference is that performance parameters are calculated by the database server itself. You do not need to create the performance table before using data from it.

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How to analyze a load test report? Part 2: Test design problems.
Testing practice WAPT usage

How to analyze a load test report? Part 2: Test design problems.

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When you start load testing a web site (especially if this is the first load test in your life) you may see a lot of errors in the report. Possibly you will even have to stop the test before it completes, because at some point in time it becomes clear that something goes wrong. If the problem is not so obvious, it is still recommended to check the report for the errors related to each virtual user profile (i.e. to each different type of virtual users) before looking at any performance data.

Usually you do not create a high load in the very first test of a web site, so if you see any errors in the report, most probably they appear because of the test design problems. In other words, the emulation of the real user activity is performed incorrectly. Your web application may produce errors and even refuse connections because it receives incorrect data from your load testing tool. Why this may happen?

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New release: WAPT 8.1 and WAPT Pro 3.1
WAPT usage

New release: WAPT 8.1 and WAPT Pro 3.1

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We are proud to announce the release of new versions of our products: WAPT 8.1 and WAPT Pro 3.1. This upgrade is free for all registered users of WAPT 8.0 and WAPT Pro 3.0 correspondingly. So, if you already have a license, you can download new versions and update your installation.

Note that load agents and x64 Load Engines should be also updated for use with the latest version of WAPT Pro.

Even though formally this is a minor upgrade, new versions have a number of features that really make the difference. Now I would like to mention couple technical details about the features that I treat as the most important.

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