Tracing: no shortage of options

[[Plus, may dtrace scripts use type names/structs/fields that do not correspond to those in
linux, so one would need to change those scripts or create a solaris emulation layer
someplace.]]

Those issue are the same for FreeBSD, MacOS X, no?
And AFAIK they have not made a Solaris emulation layer, so Solaris-specific dtrace's script
won't work here either..

A compatibility layer with dtrace portable scripts would be nice, but compatibility with
OS-specific dtrace scripts doesn't matter much IMHO.