1. http://martinfowler.com/articles/lmax.html. http://martinfowler.com/articles/lmax.html.
2. http://www.businessinsider.com/amazons-cloud-can-handle-1-million-transactions-per-second-2012-4. http://www.businessinsider.com/amazons-cloud-can-handle-1-million-transactions-per-second-2012-4.
3. https://gigaom.com/2011/12/06/facebook-shares-some-secrets-on-making-mysql-scale. https://gigaom.com/2011/12/06/facebook-shares-some-secrets-on-making-mysql-scale.
4. https://www.amingspork.com/blog/2014/06/03/1-million-sql-queries-per-second-mysql-5-7-on-power8. https://www.amingspork.com/blog/2014/06/03/1-million-sql-queries-per-second-mysql-5-7-on-power8.
5. http://blog.foundationdb.com/databases-at-14.4mhz. http://blog.foundationdb.com/databases-at-14.4mhz.