[Haskell-cafe] Reasoning about performance

Dimitri DeFigueiredo defigueiredo at ucdavis.edu
Sat Dec 5 01:01:17 UTC 2015

Indeed. I find laziness and the non-composable nature of space 
complexity in Haskell to be a much harder beast to deal with than 

There is an *excellent* introduction to the basics of lazy evaluation in 
Graham Hutton's book /Programming in Haskell/ (chapter 12), but I don't 
know of any good references beyond that basic level. Let us know if you 
find some!


On 12/4/15 5:35 AM, Joachim Durchholz wrote:
> Am 04.12.2015 um 09:01 schrieb Sumit Sahrawat, Maths & Computing, IIT 
> (BHU):
>> If you're comfortable with imperative data structures, then you can 
>> go for
>> Okasaki's book:
>> http://www.amazon.com/Purely-Functional-Structures-Chris-Okasaki/dp/0521663504 
>> Which developed from his Ph.D thesis available here:
>> http://www.cs.cmu.edu/~rwh/theses/okasaki.pdf
>> People say both are very similar in their contents, but I can't say for
>> sure. I've read the first two chapters and found them to be 
>> enlightening.
> I read the book, Okasaki is very enlightening but does not talk about 
> how to deal with partially preevaluated data structures.
> Regards,
> Jo
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