I live in a draconian tax country. How can I open a online international business and receive money from anywhere in the world? Do I need to move to a tax heaven?
You might not have to move, just have your company operating from an appropriate tax haven. You typically need to pay lawyers, accountants, etc to achieve what you are thinking about and they end up costing more than the tax you would have to pay. Do your numbers first before you get too preoccupied with the tax. As a very general comment, in some low tax countries you need to spend a lot of money to have what you get more or less for free in other higher tax countries.
From your perspective, the US state of Delaware might be an excellent location to incorporate. It's very inexpensive, popular, and would let you use all sorts of US-based payment services like Stripe and Paypal.
You can save the money in an international account (paypal?) and when you need to retrieve the money fly to such country or someone else who can do it for you.
The initial purpose of this test is to compare the different ways of connecting Nginx to Go.
It doesn't makes sense to test against a heavy task in Go instead of this single static string. Nginx in front of Go will not perform better under this circumstances. It will only perform better if static content is being served directly by Nginx or if caching is enabled, which is not the purpose of this test.
Following what some folks suggested, I also made some recent changes, like swapping ab for wrk and tuning nginx to disable gzip and enable keep-alive connections.