Digitizing and processing of broad band beam signals are common requirement for diagnostics of particle accelerator beams.An oscilloscope embedded IOC has been developed at SSRF
as a dedicated processor of broad band beam signals.This oscilloscope embedded IOC is a plug & play solution for EPICS based control system
and has been successfully applied in the bunch charge monitoring system of injector and the filling pattern monitoring system of storage ring at SSRF.Online performance of this processor is presented in this paper.