usualy yoh debug code with gdb Nd the like....dtrace is morevfor profiling the whole setup and figuring out where to optimize......plus you can, i believe, insr

usualy yoh debug code with gdb Nd the like....dtrace is morevfor profiling the whole setup and figuring out where to optimize......plus you can, i believe, insrument your code with dtrace probes, even better. if a company wants their product optimized theyll have to provide the tools for it.