CODEWITHSUNDEEP
objectjvmallocation
gcc
gcc

Reputation: 152

Where does the JVM allocate objects

I would like to know wether a Java object is necessarily allocated in main memory or if the JVM can allocate an object in the processor cache also?

Upvotes: 1

Views: 129

Answers (1)

AlBlue
AlBlue

Reputation: 24040

Objects are allocated in the heap. However reads and writes of memory will of course be cached in the processor. Different JVMs will do different things, but most will have a thread local allocation buffer which means that different threads will allocate objects in different partitions; the garbage collector will then recycle these and (if the object is still alive) move them to a different area of the heap memory as and when necessary.

Upvotes: 1

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