llama.cpp merges tiled mul_mat for k-quants, CPU inference speedup expected

ggml-cpu: tiled mul_mat for k-quants by jbooth · Pull Request #27851 · ggml-org/llama.cpp

PR #27851 by jbooth adds tiled matrix multiplication for k-quants in llama.cpp's ggml-cpu backend. The post body is blocked by Reddit, so no speedup or memory numbers are disclosed. Tiled mul_mat improves CPU cache utilization and reduces memory bandwidth pressure—a real win for local LLM inference.