Following our previous post on planning a load test, we are throwing in more points that you should consider when planning for a load test. Read the rest of this entry »
Seldom, we discuss about the planning and implementation of the load test in our site. As such, we are taking a change in this and will be touching on some considerations you as a performance tester/test manager/consultant should be thinking for every load test. These considerations enable you to smooth up the process of the entire load test and reduce any load test risks associated with it. More than often, we focus on gathering the customers requirements for the load test such as user amount to generate, how long the load test will be conducted, where will it be conducted, the location that the virtual users will generate from, etc… That is basic information. However, additional information will be required to smoothen the load test project and below are some of the additional considerations, you as a performance tester/test manager/consultant should be asking yourself or client. Read the rest of this entry »
After the tune-able parameters are changed for optimal performance, your system still fails miserably with a poor response time. The most likely step you should take is to do a deep diagnostics on the system. Break the system up into different components such as application server where diagnostics using probes is required, database servers where SQL statements and stored procedures become the next to be scrutinized, etc… Read the rest of this entry »
YSlow, another popular client-side performance profiling tool for web applications, is an add-on for Firefox. With YSlow, you will be able to determine how fast (or slow) your web page is loading, breaking down to the individual components on the web page. One thing to note, YSlow requires another add-on, Firebug to be installed in Firefox before you can install it. With YSlow you can use to determine the following website performance problems: Read the rest of this entry »
If you need to profile the performance of your web page, HTTPWatch is the tool (plugin) you can count on to do it. With HTTPWatch, not only can you determine the load time of the web page (web performance profiling), you can also determine the time taken for loading each individual object. Through this you can determine if there are bottlenecks or under-optimized setting for the web server and apply the corrective resolution to it. Read the rest of this entry »