GNU Scientific Library vs CMSIS Library Time and Space complexity

Hello,

         I have been using CMSIS library for implementation of DSP functions in ARM, however, CMSIS have very limited DSP functions. Although GNU has many DSP functions which CMSIS do not, It only have floating point implementation. I am trying to do DWT/ SWT in ARM Cortex M4, CC3200 TI Launchpad. Can anyone suggest me, how can I use GSL efficiently?