Luke Palmer wrote:
I have seen some proposals around here for SoC projects and other things to try to improve the latency of GHC's garbage collector. I'm currently developing a game in Haskell, and even 100ms pauses are unacceptable for a real-time game. I'm calling out to people who have seen or made such proposals, because I would be willing to contribute funding and/or mentor a project that would contribute to this goal.
Also any ideas for reducing this latency in other ways would be very appreciated.
Overly long garbage collection might also be a sign of space leaks. But there are many other things that can go wrong in a real time system and might explain your delays. For example, you might need to avoid amortized time data structures like Data.Sequence . Or for physics simulations, you'd need to fix the time step ∆t, as described in http://gafferongames.com/game-physics/fix-your-timestep/ or numerical integration will deteriorate rather quickly. Regards, Heinrich Apfelmus -- http://apfelmus.nfshost.com