I once tried to look into dtrace because I was missing strace from Linux. I gave up when I realized I had to learn a whole language just to do what strace did for me on Linux.
Now I'm enlightened to see there is dtruss. It works different than strace and needs privileges, but I'm glad that I've found the strace alternative.
dtrace is not supposed to replace strace on Linux. It's allows you track and process all sorts of parameters of your operating system and it's programs. It's essentially a quick way to introspect into your application without tons of printf hacks, and get to the buttom of bugs and performance issues.
Now I'm enlightened to see there is dtruss. It works different than strace and needs privileges, but I'm glad that I've found the strace alternative.