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Reputation: 41

Why does Java need to copy heap memory from(to) direct memory when involving IO system call?

Why does Java need to copy heap memory from(to) direct memory when involving IO system call?

Some articles say that's because of the GC, but I don't understand it clearly. And if it's truly because of the GC, do other languages have this problem, such as Go or Python?

Upvotes: 3

Views: 197

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