What is the mySQL database size limitation for Piwik before it encounters performance degradation?

What is the mySQL database size limitation for Piwik before it encounters performance degradation? Should we do some config for that? I use piwik 1.9.2.

Depends on the server, probably when DB is bigger than 200Mb things start get less easy to manage (but up to 10Gb is OK on any good server)

Thanks Matt.