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I think I can safely say it isn't used heavily in many production environments but it is used heavily in some. For example, one of Facebook's abuse systems, dea

I think I can safely say it isn't used heavily in many production environments but it is used heavily in some. For example, one of Facebook's abuse systems, dealing with 1M requests per second is written in Haskell: https://code.facebook.com/posts/745068642270222/fighting-spam-with-haskell/ https://code.facebook.com/posts/745068642270222/fighting-spa... As for particular places where it shines, I don't know of any in particular. I remember when taking my Declarative Programming course in university my lecturer loved to talk about an experiment the military did where they challenged a few teams to implement some kind of radar system in their chosen language and evaluated them based on time taken, correctness and code complexity (LOC) at the end. The Haskell team performed very very well. I can't find any details on this experiment though...

gjkood 9y ago
Ok, so the Facebook example definitely falls under a contemporary heavy production usage system. Thanks.
crogre 9y ago
The article you're looking for is http://www.cs.yale.edu/publications/techreports/tr1049.pdf http://www.cs.yale.edu/publications/techreports/tr1049.pdf - Two of the top three (out of ten) solutions were made in Haskell, one by a beginner.
- Veratyr 9y ago
  Yep, that's the one! Looks like there were lots of problems with the experiment but good to read regardless.
- msoucy 9y ago
  It would be interesting to see the full source code for the various entries - am I missing a place to acquire them?
coldtea 9y ago
>I can't find any details on this experiment though... Probably this one: http://www.cs.yale.edu/publications/techreports/tr1049.pdf http://www.cs.yale.edu/publications/techreports/tr1049.pdf But take it with some sacks of salt -- it's a single research paper. It should be replicated, peer reviewed, etc to have any merit. It's methodology could be totally crap for example...
- tormeh 9y ago
  It is really interesting. I do get the feeling that the researchers really wanted Haskell to win, though. It would be nice if researchers with other favorite languages also arrived at the same conclusion.
deleted 9y ago
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robertlagrant 9y ago
If you measure complexity as LOC then Haskell will do well, but you may not end up with uncomplex code :-)

gjkood 9y ago

Ok, so the Facebook example definitely falls under a contemporary heavy production usage system. Thanks.

crogre 9y ago

The article you're looking for is http://www.cs.yale.edu/publications/techreports/tr1049.pdf http://www.cs.yale.edu/publications/techreports/tr1049.pdf - Two of the top three (out of ten) solutions were made in Haskell, one by a beginner.

Veratyr 9y ago
Yep, that's the one! Looks like there were lots of problems with the experiment but good to read regardless.
msoucy 9y ago
It would be interesting to see the full source code for the various entries - am I missing a place to acquire them?

coldtea 9y ago

>I can't find any details on this experiment though... Probably this one: http://www.cs.yale.edu/publications/techreports/tr1049.pdf http://www.cs.yale.edu/publications/techreports/tr1049.pdf But take it with some sacks of salt -- it's a single research paper. It should be replicated, peer reviewed, etc to have any merit. It's methodology could be totally crap for example...

tormeh 9y ago
It is really interesting. I do get the feeling that the researchers really wanted Haskell to win, though. It would be nice if researchers with other favorite languages also arrived at the same conclusion.

deleted 9y ago

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robertlagrant 9y ago

If you measure complexity as LOC then Haskell will do well, but you may not end up with uncomplex code :-)