Benchmark beta
Add Benchmark

#	Hashrate	1 thread	Size	Duration	CPU	Threads	Version
1	526.46	131.61	1MH	1899.493	1	4	6.21.3
2	204.26	102.13	1MH	4895.694	1	2	6.17.0
3	195.21	97.60	1MH	5122.778	1	2	6.16.4