Can I limit the CPU usage of a website for testing?

Question

We have developed a website that has quite a lot of flash in it and it seems to be hanging on some machines using firefox, these machines are a lower spec than our development machines and we cannot recreate the problem locally.

Ideally we want to somehow limit the CPU usage to maybe just a single core when browsing the website in the office so we can try and replicate the situation of our users.

Is there any way of doing this?

Answer 1

VMware will let you choose to run your machine in a configurable amount of cores and processors. As far as I can tell, it won't let you downclock. But going down to one core might do the trick for you.

Answer 2

You can change the CPU affinity of the Browser and the flash plugin process. There are also some slowdown utilities that can emulate a slower CPU

http://www.classicdosgames.com/utilities.html