March 2019
Intermediate to advanced
242 pages
6h 21m
English
Content preview from Java 11 and 12 – New Features
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Flight Recorder and Mission Control
Java Flight Recorder (JFR) is a high-performance, low-overhead profiler that is built into the JVM. It is a data collection framework that records events that you can use to troubleshoot your Java applications and HotSpot JVM.
JFR records the events from OS, HotSpot JVM, and JDK binary events as binary data. This essentially means that you need a parser, such as Mission Control (MC), to make sense of this binary data.
MC is an advanced tool for program developers and administrators to analyze the data collected by the JFR profiler in detail. It can be used to analyze the data collected for applications running in local or remote environments.
In this chapter, we'll cover the following topics:
- The need ...
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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.