Constant tracing_appender::non_blocking::DEFAULT_BUFFERED_LINES_LIMIT

pub const DEFAULT_BUFFERED_LINES_LIMIT: usize = 128_000;

The default maximum number of buffered log lines.

If NonBlocking is lossy, it will drop spans/events at capacity. If NonBlocking is not lossy, backpressure will be exerted on senders, causing them to block their respective threads until there is available capacity.

Recommended to be a power of 2.