I just want to thank you for providing this info. This was exactly the cause of some of our issues and this config setting restored functionality to a major part of our app.
Happy it helped. If you have a very high throughput app (or something that logs gigantic payloads), the "logging pauses" may slow down your app in non-obvious ways. Diagnosing it the very first time took forever (I think I straced the process in the docker container and saw it was hanging on `write(1)`)