Does anyone know where there are any benchhmark timings for the DSP functionality in the ARM CMSIS V2 running on a Cortex-M4 processor. I am trying to work out whether this processor is powerful enough to meet my requirements, and to compare it to other microcontroller devices with DSP extensions.
edited to add
I will add a little background. I have an existing product that uses an old and relatively expensive DSP. I have been looking at alternative processors including the Renesas MX and ARM M4 both of which have MACC type instructions. There are benchmark figures for the supplied Renesas libraries that are of the form the x-point FFT at Y MHz takes Z ms, The FIR filter with W coefficients takes Vms etc. I was hoping that there were figures somewhere for the ARM library.
Attempting to evaluate the performance of a number of target platforms myself will be extremely expensive in tools (different compiler for each target), development boards and implementation time.