Linux, FreeBSD, Solaris i7-3960X Scaling Performance
With the Parallel BZIP2 compression test the only difference was Debian GNU/kFreeBSD falling back when in the twelve-thread configuration while Debian GNU/Linux and Scientific Linux 6.1 were both scaling the same.
With the OpenMP-based GraphicsMagick test and using the blur effect, Solaris 11 was the outlier and not scaling well at all compared to the other platforms. The two Linux environments -- Scientific Linux and Debian GNU/Linux -- were both doing the best.
Solaris 11/11 still scaled the most poorly in GraphicsMagick, this time for the local adaptive thresholding test and image sharpening.