RFR: 8003209: JFR events for network utilization

[Robin Westberg]

Hi again,

Markus kindly provided some off-list feedback with a patch to make the serialization of interfaces names more efficient. I’ve incorporated those changes, as well as adapted the unit test and corrected a few copyright years.

Incremental: http://cr.openjdk.java.net/~rwestberg/8003209/webrev.00-01/ <http://cr.openjdk.java.net/~rwestberg/8003209/webrev.00-01/>
Full: http://cr.openjdk.java.net/~rwestberg/8003209/webrev.01/ <http://cr.openjdk.java.net/~rwestberg/8003209/webrev.01/>

Best regards,
Robin

> On 25 Jun 2018, at 21:04, Robin Westberg <robin.westberg at oracle.com> wrote:
> 
> Hi all,
> 
> Please review the following change with adds a JFR event for tracking network utilization on the network interface level.
> 
> Issue: https://bugs.openjdk.java.net/browse/JDK-8003209 <https://bugs.openjdk.java.net/browse/JDK-8003209>
> Webrev: http://cr.openjdk.java.net/~rwestberg/8003209/webrev.00/ <http://cr.openjdk.java.net/~rwestberg/8003209/webrev.00/>
> Testing: test/jdk/jdk/jfr/*
> 
> Many thanks to Erik Gahlin and Markus Grönlund who have looked at earlier versions of this change and suggested valuable improvements.
> 
> Best regards,
> Robin