[Haskell-cafe] Timing execution of individual functions in ghci?

[Carter Schonwald]

indeed. My suggestion is
1) use criterion, its awsome
2) run the criterion suite with a variety of optimization flag choices so
you can understand how that changes performance
3) use criterion some more !

On Thu, Oct 23, 2014 at 10:35 AM, Daniel Trstenjak <
daniel.trstenjak at gmail.com> wrote:

>
> Hi Magnus,
>
> > Given that all I'm interested in is relative timings it might even be
> > enough to do a rough comparison of two implementations too.
>
> Optimizations - especially in Haskell - can change the runtime behaviour
> quite dramatically. So comparing the runtime performance without turned
> on optimizations is pretty much pointless.
>
> Meaningful benchmarking is hard and adding any kind of uncertainty
> doesn't make it in any way easier.
>
>
> Greetings,
> Daniel
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