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In LispWorks, tracing method is possible [1], don't know how to do that with SBCL. Trace is implementation specific, so you have to check SBCL manual to trace methods.

See this gist for LW here: https://gist.github.com/dmsurti/8364dcd636829eaf83d1

You could also tailor trace with options as listed here. [2]

[1] http://www.lispworks.com/documentation/lw70/LW/html/lw-29.ht... [2] http://www.lispworks.com/documentation/lw70/LW/html/lw-27.ht...

For a starting point, see http://netzhansa.blogspot.no/2012/02/traces-of-awesomeness.h... , where Hans Hübner teaches how to do dynamically selective tracing with SBCL.

With CLOS, I'd consider adding a specific :around method for tracing a particular specialized method.

do you mean to add an :around method on the one I'm interested and trace that instead?

I really meant more like a wrapper printing the trace-in before (call-next-method) and trace-out after. A bit cumbersome though.