looking for eperf and dtop

[Reto Kramer]

I'm looking for eperf and dtop, the two tools Mats Conqvist names in 
his 2004 presentation on debugging "large scale Erlang applications". 
I've tried OTP, jungerl, trapexit and google, but cannot find them.

Can eperf and dtop be made available to the open source Erlang users (a 
la pan in jungerl perhaps)?

Thanks,
- Reto