Test piwik on a 50,000+ visits per day website #5457

This test is very important as it will lead to necessary changes and optimization in

1. the DB design (index optimization, fields types)
2. the logging engine (how it behaves under heavy load, how the statistics logging can be optimized)
3. the archiving process (memory usage, saving computation time)
4. the interface (the DataTable scalable?)

This test will require to add new features such as

• Add possibility to limit the number of rows saved in the datatable during the archiving

should not be a ticket. will create a new consolidated "performance improvement" task