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Deploying with JRuby 9k
book

Deploying with JRuby 9k

by Joe Kutner
July 2016
Intermediate to advanced
150 pages
4h 24m
English
Pragmatic Bookshelf
Content preview from Deploying with JRuby 9k

Configuring Heap Generations

Within the JVM heap are segments called generations. Each generation represents a set of objects that have be kept in memory for about the same amount of time, which makes it easier for the garbage collector to find them. The first generation is called the young generation or sometimes the new generation. This is where memory is initially allocated for most objects. When objects survive GC (that is, they’re still in use) they’re moved to the old generation, which is also called the tenured generation.

The most important of these is the young generation. It determines the size of both generations because it’s reserved first, and the remaining heap space is used for the old generation. The young generation will grow ...

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Publisher Resources

ISBN: 9781680502138Errata Page