See https://issues.apache.org/jira/browse/CAMEL-18494

 
When payloads are known to be always larger that the hardcoded MIN_BUFFER_SIZE of 2048, this results in the resizing of the buffer.

https://github.com/apache/camel/blob/c4b5791237bbf27af7b54bbd0d14b7c6944dff1f/components/camel-mllp/src/main/java/org/apache/camel/component/mllp/internal/MllpSocketBuffer.java#L39

There is also the belief that when a gc event occurs, the buffer then returns to the default size of MIN_BUFFER_SIZE, which again results in another resizing of the buffer when larger than MIN_BUFFER_SIZE payloads arrive.

It is the hope that allowing for a customized MIN_BUFFER_SIZE would result in an overall faster sustained throughput when the payload size is known to be larger than MIN_BUFFER_SIZE (2048).