The DMA channels can also work without being triggered by a request from a peripheral. This mode is called Memory to Memory mode. If the MEM2MEM bit in the DMA_CCRx register is set, then the channel initiates transfers as soon as it is enabled by sof…

原文地址:http://www.journaldev.com/2856/java-jvm-memory-model-memory-management-in-java Understanding JVM Memory Model, Java Memory Management are very important if you want to understand the working of Java Garbage Collection. Today we will look into me…

system  memory就是电脑的内存条上的,一般都很大.显卡不能访问 . video memory就是显示卡上的显存,一般是32,64,128M这样,速度最快,显卡可直接访问 .用来描述电脑上一些可写存储区,通常是RAM,用来保存图形卡所需要的用来驱动显示设备的信息.在现代3D图形卡中,video memory也可用来保存3D向量数据,纹理,缓冲区等等,有时候以共享存储结构的形式出现. AGP memory:Accelerated Graphics Port,加速图形接口,AGP是一种接口…

是有延迟的:…

目录 . 引言 . 页表 . 结构化内存管理 . 物理内存的管理 . SLAB分配器 . 处理器高速缓存和TLB控制 . 内存管理的概念 . 内存覆盖与内存交换 . 内存连续分配管理方式 . 内存非连续分配管理方式 . 虚拟内存的概念.特征及其实现 . 请求分页管理方式实现虚拟内存 . 页面置换算法 . 页面分配策略 . 页面抖动和工作集 . 缺页异常的处理 . 堆与内存管理 0. 引言 有两种类型的计算机,分别以不同的方法管理物理内存 . UMA计算机(一致内存访问 uniform memor…

The Timers can be cascaded to make more complex timing relationships, or longer periods. Internally only some timers can trigger others. This is a Master/Slave relationship and is handled by the SMS register. For example, you can see below that TIM8…

BACKGROUND INFORMATION Various mechanisms exist for managing memory in a virtual machine environment. A virtual machine platform typically executes an underlying layer of software called a virtual machine monitor (VMM) which hosts one to many operati…

Understanding Virtual Memory by Norm Murray and Neil Horman Introduction Definitions The Life of a Page Tuning the VM Example Scenarios Further Reading About the Author Introduction One of the most important aspects of an operating system is the Virt…

转载自:http://www.cnblogs.com/mikewolf2002/archive/2011/12/18/2291584.html 当我们用clCreateBuffer, clCreateImage创建OpenCL memory object时候,我们需要输入一个flag参数,这个参数决定memory object的位置. cl_mem clCreateBuffer (cl_context context, cl_mem_flags flags, size_t size, void…

How to Use DTrace to Troubleshoot Java Native Memory Problems on Oracle Solaris 11 Hands-On Labs of the System Admin and Developer Community of OTN by Wang Yu, Vincent Liu, and Gary Wang This lab will introduce the basic concepts of DTrace and provid…