It is very easy to end up in a situation where a producer process produces data
faster than a consumer process can read/process it resulting in the producer
blocking on a full pipe buffer. This module allows 2 processes to share data
similar to a pipe, but without the producer blocking due to full pipe buffers.

A pipe is better in most situations, this is only useful if the producer needs
to do many things and you cannot afford to block on a consumer. This is used by
App::Yath to send data to a comparatively slow database upload process without
blocking.