Sadly, turning off warnings doesn't help the situation.

Regarding Safe, we're aware of these issues. The code we're dealing with is written by trusted authors -- the safe compartment is just a level of insurance against accidental flaws. We also use resource limits and an alarm handler to prevent inadvertent DDoS attacks.

Regarding Devel::DProf, my goal is to profile my perl code -- I don't care about debugging or profiling Apache itself.