Re: [Haskell-cafe] help optimizing memory usage for a program

3 Mar 2009


      Manlio Perillo ha scritto:
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Manlio Perillo ha scritto:
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I have executed the program, using the same RTS flags as yours:
real    6m13.523s
  user    0m53.931s
  sys    0m7.812s
815 MB usage
This is an huge improvement!
Using UArray and empty + insert:

   real	5m40.732s
   user	0m58.620s
   sys	0m7.264s

   660 MB usage


Using  singleton + union, memory usage is the same: 657 MB


So, now:
1) I don't understand why using uvector leaks memory.
    I'm using the latest version found on Hackage.
2) Why your version of code, using singleton + union, consumes more
    memory.
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Regards  Manlio Perillo