My local dev environment is an older Mac Pro one of the Dual CPU variants running OS X (10.11). I was doing some basic load testing of a servlet using Jmeter I was writing on AEM and noticed that it seemed to be only placing load on one of the two CPUs (Note physical CPU's not cores). Why is this the case I'd expect AEM to happily make use of all CPU's. Is this a licensing issues that limits AEM to a single CPU for a dev instance or perhaps its simply an issue with OS X and how it distributes load across dual cpu macs (I haven't tried this on linux or windows on this mac yet)? Not a big issue just more curious and I also wanted to see what impact it had on my response times!