On 05 July 2005 10:38, John Skaller wrote:
Can someone comment on the Debian package for Ubuntu Hoary providing ghc-6.2.2 with binary for amd64?
You're probably running an unregisterised build, which is going to be generating code at least a factor of 2 slower than a registerised build. You can get an up to date snapshot of 6.4.1 for Linux/x86_64 here: http://www.haskell.org/ghc/dist/stable/dist/ghc-6.4.1.20050704-x86_64-un known-linux.tar.bz2 This build is registerised, but doesn't have the native code generator.
I'm asking because I'm unexpectedly getting really bad performance as you can see here:
http://felix.sourceforge.net/current/speed/en_flx_perf_0005.html
and here:
http://felix.sourceforge.net/current/speed/en_flx_perf_0011.html
These links are unstable, this one should always have the latest results:
http://felix.sourceforge.net/current/speed/en_flx_perf.html
The compilation is using:
ghc -O3 -fvia-C -optc -O3
which can probably be tweaked, any advice on that appreciated.
I hope you're not going to conclude *anything* based on the performance of ackermann and tak! :-) Cheers, Simon