It looks it performs way better than msgpack in following benchmarks [0]. However, it's true that it's not very popular - personally, I rarely see any software

It looks it performs way better than msgpack in following benchmarks [0]. However, it's true that it's not very popular - personally, I rarely see any software that utilize CBOR. [0]: http://tutorials.jenkov.com/ion/ion-performance-benchmarks.html http://tutorials.jenkov.com/ion/ion-performance-benchmarks.h...