Here you have a GC engine that is completely pauseless: https://github.com/pebal/sgcl https://github.com/pebal/sgcl It is available as a C++ library, so you ca

Here you have a GC engine that is completely pauseless: https://github.com/pebal/sgcl https://github.com/pebal/sgcl It is available as a C++ library, so you can easily compare its performance to the reference counting.