On 20 Feb 2009, at 22:57, Bulat Ziganshin wrote:

Hello Don,

Saturday, February 21, 2009, 12:43:46 AM, you wrote:

   gcc -O3 -funroll-loops                      0.318
   ghc "-funroll-loops" -D64                   0.088

So what did we learn here?

nothing new: what you are not interested in real compilers comparison,
preferring to demonstrate artificial results

I'm not sure what you're getting at Bulat – it's been demonstrated that ghc is slower than gcc for most cases at the moment (many benchmarks will back this up), *however*, it's also easily verified that ghc has had significantly less effort directed at it than gcc and other imperative compilers, thus, there are many places it can improve greatly.

In this case, you've pointed out a really great source of heavy optimisation. Thanks a lot :) Now perhaps it might be an idea to be constructive, rather than trying to stand like nelson going "HA HA" at the people with the inferior compiler.

;)

Bob_______________________________________________
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