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 bfrie...@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/ GraphicsMagick Maintainer, http://www.GraphicsMagick.org/
