Re: [PATCH 3/4] maint: pick XSI funcs at runtime, not configure time.

[Bob Friesenhahn]

On Mon, 28 Nov 2011, Peter Rosin wrote:
> My typical use case is "mid-sized" at a magnitude or so larger, and
> even there with a fork rate of approx 10-15 Hz as I'm seeing, it wouldn't
> be too harsh with a couple of extra forks - a minutes or so on the
> wall clock time. But it would really add to the pain on some
> (hypothetical?) large project with thousands of libtool invocations.
> That's all I'm saying, but *I* am not building any of those...

Is Windows "fork" performance observed to improve linearly as 
processor cores are added, or does it maintain pretty much a fixed 
rate?  If it does not improve linearly as processor cores are added, 
then the extra forks will severely impact available performance of 
parallel builds.

I have become used to seeing substantial speedup with 'make -j 4' on a 
Windows system with four cores.

Bob
--
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/