I just got this idea, but I do not know if it makes sense at all... (I have not thought it through since I do not know the technology that well)

Would DTrace (http://en.wikipedia.org/wiki/Dtrace) make sense to integrate with some PTS test suites?

DTrace is available for
- solaris/illumos (obviously)
- Linux
http://www.crisp.demon.co.uk/blog/
- FreeBSD
http://wiki.freebsd.org/DTrace
- MacOSX
http://dtrace.org/blogs/bmc/2006/08/...e-on-mac-os-x/

... etc