Forum OpenACS Development: Re: OpenACS Performance Tests
about tclthreads: The package on TCL's file distribution area (on sf) is called thread-2.6.5 (not sure if that's what you mean). That package also includes ttrace, yes.
about ttrace: NaviServer has that integrated or makes use of it in order to provide tracing as an option. I haven't used that due to some problems that existed between that mechanism and XOTCL back when I tried (as soon as it was released). I remember sending you a message about that but I am not sure what's the current status.
about xorb: yes, I did not mean to imply that it is a replacement but it does serialize/deserialize code from a single thread and it also makes threads thinner, right? (just asking)