Hi, Just a quick progress update. I have completed NEON support for 34 out of 74 libvolk kernels that were missing NEON implementations.
Average speedup is around 4x depending on kernel, not very surprising since NEON SIMD vector size for float32 is 4... Biggest surprise was volk_32fc_s32fc_x2_rotator_32fc that now is 14x faster on Raspberry Pi 3b. This is nice because this kernel is used in the frequently used (pun intended) Frequency Xlating FIR Filter. https://github.com/gnuradio/volk/issues/243 So far kernels are only available in my (messy) branch but I will gradually create pull requests into libvolk. --Albin _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
