Currently, all output that may be written by a test and recorded in a .jtr file is buffered in memory until the test completes, at which point it is written back to jtreg via to the agent communication stream.

In extreme cases, this means that the output may be lost, if the test is terminated prematurely, such as by a timeout.

It would be better to write to stream instances that are written to jtreg in a more timely manner.