Oh come on... how can one assume a binary somehow TLV-encoded format is not faster than parsing strings (generall json schemaless btw, the dynamicity also adds on top, while yes, protobuf also has variable sized containers).
It is like you would claim parsing a string to an int is having no overhead over a straight int (yes I know proto ufs still require the varint decoding, still huge difference).
It id also not only the speed but also size is usually a magnitude off (and no, compression doesn't cut it and trades size again for computation).
Sure, if size and speed do not matter it is strange that you had considered protobuf at all.. but claiming they are never needed just means you have never been to resource constrained systems?
What you cite there, I assume most of that 400ms has nothing to do with the message encoding at all btw..
It id also not only the speed but also size is usually a magnitude off (and no, compression doesn't cut it and trades size again for computation).
Sure, if size and speed do not matter it is strange that you had considered protobuf at all.. but claiming they are never needed just means you have never been to resource constrained systems?
What you cite there, I assume most of that 400ms has nothing to do with the message encoding at all btw..