Yup. We tested messagepack a while back in our environment. Speed difference was 2% versus gzipped JSON. Not enough to invest time in changing a working system and losing human readability.
Also looks like MsgPack has very poor serialize/deserialize speeds on the JS end:
http://news.ycombinator.com/item?id=2571729
One interesting comment:
Yup. We tested messagepack a while back in our environment. Speed difference was 2% versus gzipped JSON. Not enough to invest time in changing a working system and losing human readability.
Also looks like MsgPack has very poor serialize/deserialize speeds on the JS end:
https://gist.github.com/1101623