November 2017
Intermediate to advanced
398 pages
10h 14m
English
Content preview from Java 9 High Performance
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Storing interned strings in CDS archives
The main goal of this feature is to reduce memory footprint caused by creating new instances of String in every JVM process. All the classes that are loaded in any JVM process can be shared with other JVM processes via Class Data Sharing (CDS) archives.
Oh, I did not tell you about CDS. I think it's important to spend some time to understand what CDS is, so you can understand the underlying performance improvement.
Many times, small applications in particular spend a comparatively long time on startup operations. To reduce this startup time, a concept called CDS was introduced. CDS enables sharing of a set of classes loaded from the system JAR file into a private internal representation during the ...
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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.