>not using Unikernels

year of our lord 2014

http://anil.recoil.org/papers/2013-asplos-mirage.pdf

>>12,13
ARC is also incredibly slow. See this SO question:
http://stackoverflow.com/questions/24101718/swift-performance-sorting-arrays
Where turning off memory management allows Swift to have speed competitive with C, but leaving it on makes an ordinary int sort take over 7 minutes.