https://github.com/ixy-languages/ixy-languages
Since the Xerox PARC workstations and Genera Lisp Machines, all hardware specific instructions for memory management have proven to be worse than doing it eventually in software.
https://github.com/apple/swift-nio
As for memory management impact in overall performance, a similar set of benchmarks would be needed.
https://github.com/ixy-languages/ixy-languages
Since the Xerox PARC workstations and Genera Lisp Machines, all hardware specific instructions for memory management have proven to be worse than doing it eventually in software.