What is the right approach to get similar effect to RFC 7706: Decreasing Access Time to Root Servers by Running One on Loopback?
This is not about literal RFC 7706 implementation! It serves only as basic idea which can change as needed.
Different root zone download methods:
What code can (and should) be shared between Knot DNS and Knot Resolver via libdnssec?
AXFR code is hard to share, it depends on Knot DNS internal datastructures. AXFR implementation for Knot resolver should be relatively easy.
Other changes are not required for now.
What do we need for implementing parallel queries (data structures included)?
Grisa has proposal:
Vlada will review the proposal. Forwarding needs detailed analysis, Grisa will look into it. Implementation will be done by Grisa.