I\'m trying to see how our web pages behave on an average customer\'s computer. We have not yet pinned down this configuration, but it\'s likely to be slower than what our d
Found a solution for this on Mac as well.
http://jesperrasmussen.com/blog/2013/03/07/limiting-cpu-cores-on-the-fly-in-os-x-mountain-lion/
Using the instruments app, you can limit the CPU usage of one or all running processes.