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Avoid Cache Misses in Java

For the time being, I will switch my state of mind to developing cache-friendly applications.
In C ++ im, using the distribution of the stack where I can, and I hold the data for the same purpose in the same array (Data Driven Programming) etc .... But it is also Java-developer, and the question arises:
I I heard that Java is a "skipped cache generator".
All that is on the heap, and scattered throughout the RAM after allocation or garbage collector. I think the same problem with C #.
Would it make sense to write Java in Data Driven?
Is there a way to optimize Java code, or are we stuck with automatic Java optimization and skipping cache?

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In C ++ im, using the stack distribution where I can, I also keep the data for the same purpose in a single array (Data Driven Programming), etc.

In Java, it will automatically push short live objects onto the stack using Escape Analysis. I would not worry about this if you do not see in the profiler that this is a problem. Even then, it may happen that the profiler does not allow escape analysis to work, and this is not a problem in a real program.

I heard that Java is a "skipped cache generator".

Java has much more links than C ++ or C # code that was written to use structures or objects embedded within objects. What difference does it depend on how sensitive your application is to micro-settings.

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