Load/Performance testing a site with Kerberos authentication

Which performance testing tool supports web pages with Kerberos authentication? Tools which just 开发者_StackOverflowfallback to NTLM is not enough.

I have done some research and the list of available tools are:

• Visual Studio 2010 Load testing tools (part of the Ultimate package)
• Proxy Sniffer
• WebLOAD
• Forecast

I do these tests with Silk Performer, which is a commercial product from Borland that manages hundreds of parallel test users connecting via Kerberos.

Jmeter support KERBEROS very well.

WebLOAD from http://www.radview.com/ support Kerberos authentication