arm cache-阿里云

ARM平台内存和cache对xenomai实时性的影响

[TOC] 1. 问题概述对ti am5728 xenomai系统latency测试时，在测试过程中发现，内存压力对latency影响极大，未添加内存压力下数据如下(注：文中所有测试使用默认gravity，对实时任务cpu已使用isolcpus=1隔离，另外文中的结论可能只对ARM平台有效)： s...

内存系列学习（五）：ARM处理器中的Cache和Write Buffer

1 基本概念2 Cache工作原理在cache存储系统中，把cache和主存储器都划分成相同大小的块。主存地址由块号B和块内地址W两部分组成，cache地址由块号b和块内地址w组成。当CPU访问cache时，CPU送来主存地址，放到主存地址寄存器中，通过地址变换部件把主存地址中的块号B变换成cach...

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更新时间 2024-05-10 12:16:00

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