I'm using a very small MariaDB instance as a datastore for my
monitor, my own mail server (postfix, roundcube). It's a
virtual machine from a commercial VPS provider.
All data fits in memory and the overhead of running with performance_schema on is not an issue.
While I was reading a blog post about performance_schema by Mark Leith I wanted to see what P_S could tell me about my own server.
This is the output from the first …