I've posted my full test scripts and results here: http://williamting.com/2012/04/19/performance-decrease-using-env/ http://williamting.com/2012/04/19/performan

I've posted my full test scripts and results here: http://williamting.com/2012/04/19/performance-decrease-using-env/ http://williamting.com/2012/04/19/performance-decrease-using... I've been using this handle since '93 out of inertia. My tests were done on an idle i7-620M, sequentially. If your invocation takes about 0.015s, that means you're not looping enough for differences to appear. A 2% increase from 0.015s is 0.0153s, invisible due to significant digits cut off.