TMS320C6000 Digital Signal Processor Library (DSPLIB) is a platform-optimized DSP function library for C programmers. It includes C-callable, general-purpose signal-processing routines that are typically used in computationally intensive real-time applications. With these routines, higher performance can be achieved than with equivalent standard ANSI C language code. By providing ready-to-use DSP functions with source code, DSPLIB can significantly shorten application development time.
See the benchmarks: DSP core benchmarks