ARM SME2(Scalable Matrix Extension 2)是ARMv9.4-A架构的核心扩展,首次引入二维ZTile矩阵寄存器和FMOPA外积累加指令,使通用CPU具备与入门级GPU竞争的INT8/BF16矩阵运算能力。本文深入解析SME2硬件架构、编程模型、LLM推理工程实践以及性能实测数据。
A comprehensive deep dive into the Linux network protocol stack, covering the complete packet processing pipeline from socket layer to driver, including key kernel data structures, NAPI, epoll, and performance tuning.