No, as you say, you're using it pretty much as documented. Probably the best thing to do will be to keep the interpreter hanging around, and call perl_eval_ev() more than once - so in your loop, you get rid of the perl_construct/destruct, and put them outside the loop. That way, the memory you leak is constant, rather than proportional to the number of times you have looped. Not a fix, but a solution nonetheles...