https://code.launchpad.net/~aishimoto/+junk/shibazukemethaneさんのmsgpack用ベンチマークを拝借すると、こんな感じ。 == Integer == = Size = pickle: 6203398 [bytes] json: 5154816 [bytes] shibazuke: 3001355 [bytes] pickle_dump 294.900[ms] pickl…