March 10, 2013
Professional software testers call them “SUT” or Systems Under Test. That’s your website or web application which needs to be load tested. That’s a SERVER in LoadStorm. Servers are the target domains of your load testing. For instance, “http://dmoz.loadstorm.net” would be an example of a server. In order to conduct a load test, the target must be a URL where a web site or application resides. We simply call this the “server”, and it should not be confused with a specific piece of hardware. You may create as many test plans as you wish against a particular server. A […]
Read more March 7, 2013
The reports available in LoadStorm supplement the graphs by providing additional detail beyond the key performance indicators visible in the graphs. All reports are accessible under the Analyze tab by clicking on the Details button next to the load test you wish to view. There are essentially 5 different views of the load test results: Summary Report – presents cumulative results for the complete load test. Requests by Elapsed Time – request/response specifics listed sequentially in one-minute increments. Requests by Error Code – lists any requests that trigger an error. Requests by Response Time – shows the slowest resources in […]
Read more March 7, 2013
The Summary Report is on the same page with the graphs and shows performance metrics for the entire load test. The counts are also split out by HTML pages versus ancillary resources such as images, stylesheets, XML, and script files. This Summary Report shows: Response time (average) – shows the average time it takes to get a response per request. Errors – shows the total number of errors. Requests – shows the total number of requests. RPS (average) – shows the average number of requests sent per second. RPS (peak) – shows the largest number of requests sent in per […]
Read more March 7, 2013
Below are two screenshots of the two graphs that appear for each load test. In the actual application, the actual value of the metrics will appear when you mouse over one of the lines (shown). Volume Graph The first one shows the volume of traffic hitting your server. It shows three lines representing these metrics: Concurrent Users Requests per Second Throughput Requests per Second RPS is the measurement of how many requests are being sent to the target server. It includes requests for HTML pages, CSS stylesheets, XML documents, JavaScript libraries, images and Flash/multimedia files. RPS will be affected by […]
Read more March 7, 2013
LoadStorm is a distributed application that leverages the power of Amazon Web Services to scale on demand with processing power and bandwidth as needed to test the largest web projects. As you crank up the testing load to 100 or 100,000 virtual users, LoadStorm is automatically adding machines for you (as many as necessary) from Amazon’s server farm to handle the processing. When your tests are done and the extra machines are not needed, they are turned off to wait for another test. The normal processing is for a scenario to be processed as a sequential series of steps that […]