I agree that that recent example of printing the mysql queries is kind of dumb. I can definitely see a use for dtrace for gathering metrics and mining data tha

I agree that that recent example of printing the mysql queries is kind of dumb. I can definitely see a use for dtrace for gathering metrics and mining data that it isn't worth the application provider building in, or digging into software that you can't get the source for (traditionally much less of an issue on Linux than on Solaris). But listing the queries that are being sent through your mysql instance is a feature that not only should exist as part of the base mysql feature set, it already does. This example is in the same class as using Fibonacci as a good example of recursion.