Hello On Tue, Jun 17, 2008 at 10:24 PM, Niels Aan de Brugh wrote:

On Tue, 2008-06-17 at 13:19 +0100, Samuel Silva wrote:

...

I'm using GHC to compile around 700K of Haskell Code generated by HaXml. How I compile this code. My machine is Windows-XP(512MB RAM, 1.5GHz) running GHC-6.8.2.

How much time it spend to compile this file? I spent more than 1 hour and it doesn't finished.

Just out of curiosity, is all that 700K just one big file or did you split it up into multiple files?

It's just two big files with 700K each generated by DtdToHaskell from two big DTD files around 70K each.

Are you using any "expensive" features? I'm not a GHC exert, but I'd expect things like type manipulations (e.g. phantom types) to be expensive (please correct me if this assumption is wrong).

This large module only contains datatype declarations and instance classes for HTypeable, XmlContent, XmlAttributes and XmlAttrType.

Bottom line: if compiling is so slow consider changing the code generator so the result is easier to process by GHC instead of fiddling with command line switches. Since you've chosen to generate the code it will probably change often and you'll run into this problem more than once.

Regards, Niels

Each Haskell file have almost 15000 lines. It is huge. It's compiling very fast(some minutes) using -H300m without cabal and -H200m with cabal. GHC it is amazing. This was a valuable help. -- Don't hug that, Hugs ME! Samuel Silva