March 2019
Intermediate to advanced
242 pages
6h 21m
English
Content preview from Java 11 and 12 – New Features
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Tuning ZGC
Let's look at a couple of options to fine-tune ZGC (this chapter covers just a few basic ones). Let's start with the most basic option of setting the max heap size. We can do this by using the following JVM runtime option:
-Xmx<size>
To get the optimal performance, you must set a heap size that can not only store the live set of your application but also has enough space to service the allocations.
ZGC is a concurrent garbage collector. By setting the amount of CPU time that should be assigned to ZGC threads, you can control how often the GC kicks in. You can do so by using the following option:
-XX:ConcGCThreads=<number>
A higher value for the ConcGCThreads option will leave less amount of CPU time for your application. On the ...
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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.
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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.