note John M. Dlugosz Hmm, so is there a way to efficiently have a couple threads work on the same large data buffer? Simplest case is producer/consumer flow: if they pipe data from one to another. The Thread::Conveyor looks like its for discrete lumps, not a stream of bytes. I'm afraid a filehandle based on a scaler to use as a pipe will be hidious in this situation! <P> &mdash;John 288022 288022