I have noticed that when introducing an AsyncHandler for logging, all log statement are copied before being put on the queue and as part of that copy a complete stack dump is done.
This might be useful if the stack info is used by a downstream formatter (eg for line number identification), but even if the line numbers are not used anywhere, this still happens.

I think this behavior should be at least optional.

Source Location: org.jboss.logmanager.ExtLogRecord#copyAll