If you look at PostgreSQL configuration settings, you'll notice a chunk of them are dedicated to dealing with fsync. They even have a dedicated testing tool to test how the database behaves with different modes of syncing.
fsync is a serious performance problem, especially in distributed storage systems. If you can get it under your control, you can definitely benefit from it.
fsync is a serious performance problem, especially in distributed storage systems. If you can get it under your control, you can definitely benefit from it.