Re: [Haskell-cafe] Parallel weirdness [new insights]

Bulat Ziganshin wrote:

yes. multi-threaded GC is planned gor next ghc version, afair

To be clear, it'll be a parallel GC, not a concurrent one. The former still stops all threads, but runs the collector on multiple cores at once. The latter performs collection while mutator threads are still running, and is a lot trickier to implement. (For a fine knee-slapping time, try reading a Java GC tuning guide.)