Hello Haskellers,

I'm playing a bit with Data.Judy. However, I noticed that using StablePtr
incurs in some performance problems, I don't have any numbers but as a
example use Int and ByteString as values and you can notice the difference
without any benchmarking tool with the example that comes in the
documentation.

The question that I have is: is there any way to make it faster for types
other than those that fits in word size? I understand that the way the
binding to the C code has been done, stableptr is required. Am I wrong
assuming this? I would be happy to submit a patch but I failed to find a way
to improve the performance.

The second question is what is a common practice to avoid memory leaks with
StablePtr? I have zero experience programming with the Haskell FFI
interface, so probably the most basic stuff would help me a lot in this
case.

Thanks in advance,
-- 
~dsouza
yahoo!im: paravinicius
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