Show HN: Universal Pause Button
This is nice! On OSX, processes can be paused and continued too (by name via killall, and by PID via kill):  kill -STOP 1234
  kill -CONT 1234

  killall -STOP -c "Pandora"
  killall -CONT -c "Pandora"

A more nuanced control is to throttle down the CPU, via cputhrottle[1].If I'm running a CPU-intensive calculation and don't want to bog down the rest of my system I will use it to give me enough cycles for Sublime Text to work smoothly.It's easy to call:  sudo cputhrottle PID cpuUsage%
ex.  sudo cputhrottle 12345 400

1. http://www.willnolan.com/cputhrottle/cputhrottle.html