Summary
User benchmarks llama.cpp PR #22675 for Mamba-2 prefill acceleration on Nemotron-Nano-9B-v2, with pp16384 tok/s reported.
The PR is tested at various ub values.
The user also mentions DeepSeek-V4-Flash-UD-IQ2_XXS on an M4 Max for a Metal FWHT kernel PR, but the primary benchmarked model is Nemotron-Nano-9B-v2.