[mintyc]

My experience with capn proto was a mixed bag.

Quite apart from its neglect for years as Kenton was working on sandstorm.io, I found the low level access interfaces to extract best performance to be both fiddly and often rely on an intimate knowledge of the internals.

As is often the case, maximum performance for your use case requires more intimate detail.

I can't remember, but some of these zero copy protocols may still require byte order swapping on mixed endian systems. (But cache access times probably dwarf the byte swapping)