Pointers to learn how to use DTrace

Question

When I asked for tools to profile Rails apps, someone pointed at DTrace. Since I work on MacOSX stations and deploy on OpenSolaris, it is a valid way to go. But I have little kn

Answer 1

I found that reading dtrace version of the usual admin monitoring tools of Mac OS X was a great help truss -> dtruss. There are at least a dozen different scripts that you can read. (Most begining by "d".)

There also is /Developer/Applications/Instruments.app which is a graphical app which generates dtrace scripts.

Also, Wikipedia's DTrace page has loads of links which should help.