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From Ted Dunning <>
Subject Re: [math] Re: [LINEAR] Performance and bugs of 2.0 library
Date Sat, 30 Jan 2010 06:58:39 GMT
This comparison is also confounded by the fact that most C++ libraries try
to make use of native binary libraries such as ATLAS and often get a
dramatic speedup as a result.

On Fri, Jan 29, 2010 at 4:55 PM, Peter Abeles <>wrote:

> I have seen some adhoc comparisons on-line. Mostly just matrix multiply.
> Having said that I wouldn't be surprised if I missed something.  Based
> on personal experience I would expect about a 2-3 times speed hit
> between well written java and c/c++ code because of array overhead and
> language constraints.  For pure arithmetic I have gotten nearly
> identical performance.

Ted Dunning, CTO

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