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Latest Blogs
  • Streamline中基于统计的性能分析功能介绍

    章政
    章政
    原文参考 ARM性能分析器(Streamline) 7.0版开始支持基于SPE(统计性能分析扩展)的性能分析。SPE是Armv8.2-A架构中的一个可选扩展特性,它可以以很低的代价对处理器的流水线进行采样。Streamline可以从Arm Development Studio和Arm Mobile Stuido获取。 为什么需要SPE? Streamline前序版本只能通过硬件计数器和软中断中采样PC信息获取CPU的信息…
    • January 28, 2020
  • 让数值算法在Arm edge端跑的更快

    章政
    章政
    CMSIS DSP 库作为高度优化的嵌入式系统数字信号计算库一直以来深受广大开发者所喜爱,随着人工智能(Artificial Intelligence )逐步向Edge端扩展,Edge端的数字计算负载也越来越大,为了缓解计算的压力,各种框架也在Edge端采用CMSIS DSP库进行优化加速。科学计算环境和嵌入式开发环境有很大的区别,比如科学计算往往采用Python,SCIPy,Matlab,而这些环境一般是无法在低功耗嵌入式环境…
    • November 13, 2019

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