[Haskell-cafe] the last mile in haskell performance

[Will Yager]

This is why CPUs have many independent cache lines. Unpacking a vector into multiple vectors is usually fine for performance. I have seen it actually increase performance, because it simplifies addressing. 

-Will

> On Nov 14, 2015, at 05:30, Alberto G. Corona <agocorona at gmail.com> wrote:
> 
> 
> This is nice in some cases, but does most of the time does not. this does not solve the problem of CPU cache since the fields in the data are at least lenght (Vector)  away. I mean that if the vector is moderately long, if the first field is in the cache, the second or third etc may not be. Usually the fields of any data are handled together.  
> 
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