bulat.ziganshin:
Hello Aran,
Friday, April 30, 2010, 2:26:20 AM, you wrote:
In GHC, if a thread spawned by forkIO blocks on some network or disk IO, is the threading system smart enough not to wake the thread
afaik, yes. it's controlled by special i/o thread that multiplexes all i/o done via stdlibs. but ghc i/o manager can't use epoll/kqueue so it's appropriate only for small (or medium?) servers
Look at the recent work on the event library and replacing the IO manager. http://www.serpentine.com/blog/2010/01/22/new-ghc-io-manager-first-benchmark... There's much more background on the new code here, http://www.serpentine.com/blog/2009/12/17/making-ghcs-io-manager-more-scalab... and some nice benchmarks http://blog.johantibell.com/2010/01/scalable-timeout-support-for-ghcs-io.htm...