The Redis mavins at Garantia  decided to find out whether EBS really slows down Redis when used over various AWS platforms.

Their testing and conclusions answer the question: Should AOF be the default Redis configuration?

We think so. This benchmark clearly shows that running Redis over various AWS platforms using AOF with a standard, non-raided EBS configuration doesn’t significantly affect Redis’ performance. If we take into account that Redis professionals typically tune their redis.conf files carefully before using any data persistence method, and that newbies usually don’t generate loads as large as the ones we used in this benchmark, it is safe to assume that this performance difference can be almost neglected in real-life scenarios.

Read the full post for all the details.