Memory consumption is usually _much_ better with `--gc:arc`.
- NvP: s.add('x') 100M times HashBackupJim
- Re: NvP: s.add('x') 100M times Araq
- Re: NvP: s.add('x') 100M times HashBackupJim
- Re: NvP: s.add('x') 100M times cblake
- Re: NvP: s.add('x') 100M times Araq
- Re: NvP: s.add('x') 100M times cblake
- Re: NvP: s.add('x') 100M times cblake
- Re: NvP: s.add('x') 100M times cumulonimbus
- Re: NvP: s.add('x') 100M times cblake
- Re: NvP: s.add('x') 100M times b3liever
- Re: NvP: s.add('x') 100M times cblake
- Re: NvP: s.add('x') 100M times b3liever
