summing large arrays - or - performance of tight loops

Thomas Kuehne thomas-dloop at kuehne.cn
Wed Apr 18 08:10:25 PDT 2007


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I've done a few tests on how DMD and GDC handle tight loops
and was surprised by the slow code DMD generates for "foreach".

results and source code:
http://dstress.kuehne.cn/benchmark/tight_loops/sum.html

Thomas


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