[Haskell-cafe] Cost: (:) vs head

michael rice nowgate at yahoo.com
Sat Sep 11 15:47:47 EDT 2010

With Haskell, there's always something new to learn, and on haskell-cafe there are always patient people to assist in that endeavor.

Thanks, all.


--- On Sat, 9/11/10, Jason Dagit <dagit at codersbase.com> wrote:

From: Jason Dagit <dagit at codersbase.com>
Subject: Re: [Haskell-cafe] Cost: (:) vs head
To: "michael rice" <nowgate at yahoo.com>
Cc: haskell-cafe at haskell.org
Date: Saturday, September 11, 2010, 2:59 PM

On Sat, Sep 11, 2010 at 7:10 AM, michael rice <nowgate at yahoo.com> wrote:

Hi Baz,

That's quite an analysis, one I'll keep for future reference.

So, my original coding was the fastest. Guess I should stop second guessing myself. ;-)

I think Bas's point was actually that you should second guess yourself and use Criterion/ghc-core if you want to know which way is fastest.  On the other hand, these are microbrenchmarks and should not be taken as representative of how they will perform inside a larger application.

Evidence is always nice to have :)

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