Hi Matt, On Mon, 5 Feb 2024 at 22:37, Matt Sicker <m...@musigma.org> wrote: > > For #3, I agree that we should perform formatting on the application thread > before transferring control to an asynchronous thread.
I am not sure if we always need to format the message (the `log4j2.formatMsgAsync` property and and the `@AsynchronouslyFormattable` on a message class might still be useful), but for simplicity I would do it in a single place, just before appending a log event to a queue or ring buffer. Whether or not format messages synchronously should probably be configurable (even for `@AsynchronouslyFormattable`): this speeds up enabled loggers considerably (we might even think about pre-formatting events), but slows down disabled loggers. Piotr
