On Sun, Jun 23, 2013 at 9:48 PM, Jonathan Woithe <jwoithe@just42.net> wrote:
 Another caveat is jackd: my current understanding is that jack2
can better utilise multiple cores, but I'm happy to be corrected on this
point by anyone with more knowledge than I

From https://github.com/jackaudio/jackaudio.github.com/wiki/Q_difference_jack1_jack2

"SMP support is not always as valuable as you would think. If your applications are chained INPUT --> A --> B --> C --> OUTPUT, then it will not be able to utilize multiple processors. However, if you applications are independently generating audio to the OUTPUT, that is when "parallel" sub-graph exist in the global graph, then they can be."