I have a tuxedo application with a java client which accesses it via Jolt V1.1 protocol. The backend is Oracle 8.1.7 DB.
All components run on Solaris 8

I need a freeware tool to load test this system. I need to emulate 1000 to 2000 vusers.
My load injectors could be Solaris/SPARC and/or Microsoft Windows NT/2000

Do you know any tool of these characteristics I could use?

Thanks in advance.
Jose Luis del Barrio