I am wondering whether it is a good idea to convert a large D6 database of a community site (with 80% read 20% write and about 1300 qps, using MyIsam engine) from Mysql to MariaDB?
MariaDB seems to be highly desirable:
MariaDB is a database server that offers drop-in replacement functionality for MySQL. MariaDB is built by some of the original authors of MySQL, with assistance from the broader community of Free and open source software developers. In addition to the core functionality of MySQL, MariaDB offers a rich set of feature enhancements including alternate storage engines, server optimizations, and patches
However I'd like to hear first-hand experiences of fellow drupallers about the expected performance gains. I know that MariaDB uses XtraDB (InnoDB improved) storage engine by default. In fact my site slowed down significantly once I moved the Mysql database to InnoDB engine, so I am a bit unsure about the supposed performance gains.
Also I'd like to know about caveats (possible incompatible modules, etc) of converting to MariaDB.