How to get C like performance in Java

Re:How to get C like performance in Java by igouy on Sunday July 24, 2011 @02:35PM (#2799998)

>>That's a good link.<<

Those measurements for programs forced to use just one core on a quad-core machine, you may also be interested in the measurements made when the programs are allowed to use all the cores -

http://shootout.alioth.debian.org/u32q/which-programming-lan...

and also measurements made on x64

http://shootout.alioth.debian.org/u64q/which-programming-lan...

>>The n-body and spectral-norm benchmarks were fastest in Fortran.<<

Maybe we should wonder if the Intel C++ compiler would produce programs comparable to those from the Intel Fortran compiler ;-)

>>Object orientated programming is used in a significant portion of all programs, it would be interesting how C/C++ performs in such benchmarks.<<

Maybe you're suggesting that OO C++ programs wouldn't perform as well as Java programs? But doesn't that highlight the advantage of being able to write programs in different styles?

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Re:How to get C like performance in Java by peter_lawrey on Wednesday July 27, 2011 @05:14AM (#2811417)

I agree, I am suggesting that "no pointer = no speed" is not demonstrated by the benchmarks provided. The developers who wrote the benchmarks which were faster than the C/C++ ones didn't appear to agree. i.e. when they has the optional to use them, they didn't and were still faster.

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