> > The "show" cost varies a bit, maybe as low as 30ms or as high
> > as 40ms, but never so long as 200ms...
> >
> > The monitor refresh is 60Hz, so that possibly sets a lower bound
> > of about 17ms for the screen to show anyway.
> >
> > Note that I'm running this in a X server on a WinXP machine,
> > the actual Linux box I test on is about half a kilometre away...
> > I'd assume running it locally on the machine would be even faster.
> >
> 
> One my side, using your sample, and the same binary compile on a RedHat 4
> 
> I am using two differents RedHat (Red Hat Enterprise Linux ES release 4
> (Nahant Update 5) and  Red Hat Enterprise Linux Server release 5.5
> (Tikanga))
> 
> The first one is slow at 200ms, but the second one got 20ms (ten times
> faster)

So... you ran the same binary on both machines?

If so, that tells us the slowness is coming from the system rather than from 
the fltk binary then I guess.

I wonder if it is a display driver thing, then? 



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