This article is from 2010. There have been significant changes in the GHC runtime system since then. Most importantly, in February 2013, the parallel I/O mana

This article is from 2010. There have been significant changes in the GHC runtime system since then. Most importantly, in February 2013, the parallel I/O manager was replaced with a new design. http://www.haskell.org/pipermail/ghc-devs/2013-February/000414.html http://www.haskell.org/pipermail/ghc-devs/2013-February/0004... > Our evaluations show that the new Mio manager improves realistic web server throughput by 6.5x and reduces expected web server response time by 5.7x. We also show that with Mio, McNettle (an SDN controller written in Haskell) can scale effectively to 40+ cores, reach a throughput of over 20 million new requests per second on a single machine, and hence become the fastest of all existing SDN controllers. http://haskell.cs.yale.edu/wp-content/uploads/2013/08/hask035-voellmy.pdf http://haskell.cs.yale.edu/wp-content/uploads/2013/08/hask03...