January 2018
Intermediate to advanced
350 pages
9h 7m
English
Content preview from Java EE 8 High Performance
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Warming up your system
Another crucial step to doing a benchmark is to not measure the data on a cold system. The reason is that a Java EE application generally intends to be long-running software; for that reason, it is common to have a hot system which already got optimizations after having ran during weeks or hours. These optimizations can be in action:
- The JVM Just-In-Time (JIT) compilation: This will optimize some common code paths. You can also investigate the -XX:-TieredCompilation option of the JVM to pre-compile the code, but you can encounter some issues with it on some servers.
- You can use some caching and therefore the application will be faster once the cache has all the data you test.
- If you use some external system you may ...
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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.
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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.