November 2017
Intermediate to advanced
398 pages
10h 14m
English
Content preview from Java 9 High Performance
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What did they do?
After having gone through a lot of different solutions, the JPM team has finally decided to come up with a strategy to compress string during its construction. First, optimistically try to compress in 1 byte and if it is not successful, copy it as 2 bytes. There are a few shortcuts possible, for example, the use of a special case encoder like ISO-8851-1, which will always spit 1 byte.
This implementation is a lot better than JDK 6's UseCompressedStrings implementation, which was only helpful to a handful of applications as it was compressing string by repacking and unpacking on every single instance. Hence the performance gain comes from the fact that it can now work on both the forms.
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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.
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