Hans Boehm&#x27;s GC is actually really, really good. Before you embark on a massive engineering effort that will likely lead to little gain and a lot of pain, I would measure the overheads very carefully. I am not at all convinced precise GCs buy you that much over the Boehm GC for most apps, and they fundamentally kill interop with C code.<p>(I can&#x27;t recall for sure but I believe I had this conversation with Martin in a taxi ride not too long ago :)