Why are you surprised? Java always suffers from abstraction penalty for running on a VM. You should be surprised (and skeptical) if Java ever beats C++ on any benchmark.

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pron 4 hours ago | parent | next [-]

The only "abstraction penalty" of "running on a VM" (by which I think you mean using a JIT compiler), is the warmup time of waiting for the JIT.

	▲	andersmurphy an hour ago \| parent [-]
		Its a statement of our times that this is getting down voted. JIT is so underrated.

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woooooo 5 hours ago | parent | prev [-]

For the most naive code, if you're calling "new" multiple times per row, maybe Java benefits from out of band GC while C++ calls destructors and free() inline as things go out of scope?

Of course, if you're optimizing, you'll reuse buffers and objects in either language.