January 2018
Intermediate to advanced
350 pages
9h 7m
English
Content preview from Java EE 8 High Performance
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Java Mission Control
Since Java 7u40, the JDK has included the Java Flight Recorder tool. If you remember the available commands in jcmd, you had some JFR.* options, which are directly related to this tool. It allows you to capture a set of JVM events. It is coupled with Java Mission Control (JMC), which enables you to analyze and exploit the JVM events.
Launching it is easy:
$ $JAVA_HOME/bin/jmc
Once it is launched, you'll get a welcome screen; the view looks similar to the jvisualvm view, with a list of the available processes on the left-hand side:
You can use the same kind of hints as for jvisualvm to identify the process. If you are not ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.