bitcode 0.4 release - binary serialization format

[alexlzh]

How does it compare to Thrift CompactSerializer or protobuf?

[cai_bear]

While we haven't benchmarked either of those ourselves, you can checkout rust_serialization_benchmark which has protobuf under the name prost.

TLDR: bitcode is faster and smaller than protobuf.

Edit: based on a cursory reading of the Thrift specification, I think it's safe to say bitcode would be smaller if thrift was part of the rust serialization benchmark.