PerformanceEngineer.com software performance engineering & testing

The verdict is in... LoadRunner 9.0 is a bust. Based on Mercury's track record with new releases, it isn't too surprising that the latest release of LoadRunner is buggy. What is surprising is how many steps backwards the product has gone with very few new features. The discussion board on Mercury support site is filled with accounts of crashes, hangs and failures. The experience at my company was the same: the product is just too unstable to use. I hope it is not an indicator of what to expect now that HP is running the show.

TestMaker is a framework and utility that builds intelligent test agents which implement users interactions in several environments. This program is developed in Java (so it is multi-platform) and it is available as open source.

http://www.pushtotest.com/ptt

I haven't played around with it much, but it's on my to-do list. From browsing the web site and seeing other reviews on the web, it looks like it may be worth a look as quick load test tool when you're in a pinch.

OpenSTA http://opensta.org/ is an open source software developed in C++, and released under the GPL licence.
It is an HTTP load test application with scenario creation and monitoring, which can be
distributed on different computers.

The Grinder http://grinder.sourceforge.net/

JMeter http://jakarta.apache.org/jmeter/

WebLOAD http://www.radview.com/