After reading this I wonder if there is an opportunity for SkySQL and Percona to offer "performance tuning for performance schema" classes. I don't think performance monitoring should be this hard. What are the plans for MariaDB moving forward -- more user_stats/table_stats/index_stats and maybe statement_stats or integrate with the PS?

http://dev.mysql.com/doc/refman/5.6/en/performance-schema.html
http://marcalff.blogspot.com/2013/04/on-configuring-performance-schema.html

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Mark Callaghan
mdcallag@gmail.com