Re: [Bug-gnubg] linux

[Philippe Michel]

On Wed, 12 Apr 2017, Anders Persson wrote:

> I think the gnu backgammon version in the ubuntu/mint program packages must
> have been compiled badly in some way, because it's very very slow compared
> to the windows version. Running the windows version in the Wine emulator on
> the same Linux on the same computer is about 5 times faster on evaluation
> than the native ubuntu version!

I can see something similar on a Ubuntu 16.04 VM : the gnubg from its 
package is about 4 times slower than one I compiled myself.

An obvious difference is that the package is set up to use only 
instructions available on all processors while my build detected that it 
could use more efficient ones that were available on this specific 
machine.

But in no way can this alone explain such a large discrepancy. The Ubuntu 
package must use some more onerous compilation options.