[Haskell-cafe] Ridiculously slow FFI, or cairo binding?
tab at snarc.org
Wed Nov 2 11:14:09 CET 2011
On 11/02/2011 10:10 AM, Eugene Kirpichov wrote:
> Oh. This is pretty crazy, I wonder what they're doing with GMP so much...
> I modified the Haskell program to use cairo directly, even with safe calls,
> and it now takes the same time as the C program.
yep, i ended up doing the exact same thing for testing,
foreign import ccall "cairo_rectangle"
my_rectangle :: CI.Cairo -> CDouble -> CDouble -> CDouble -> CDouble -> IO ()
and just replacing the rectangle call make almost all the difference for me
(almost as fast as C)
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