5.2 Dynamic Video Memory Technology
The following is quoted from "Intel® 865GV Chipset Dynamic Video Memory Technology", document number : 253144-001 :
The method of memory allocation where the Operating System, Application and Graphics Memory come from a unified System Memory pool known as Unified Memory Architecture (UMA). Dynamic Video Memory Technology (DVMT) is an enhancement of the UMA concept, wherein the optimum amount of memory is allocated for balanced graphics and system performance, through Direct AGP (known as Non-Local Video Memory, or NLVM), and a highly efficient memory utilization scheme. DVMT ensures the most efficient use of available memory . regardless of frame buffer or main memory sizing . for maximum 2D/3D graphics performance.
DVMT dynamically responds to system requirements, and application demands, by allocating the proper amount of display, texturing and buffer memory after the operating system has booted. For example, a 3D application when launched may require more vertex buffer memory to enhance the complexity of objects, or more texture memory to enhance the richness of the 3D environment. The operating system views the integrated graphics driver as an application, which uses Direct AGP to request allocation of additional memory for 3D applications, and returns the memory to the operating system (OS) when no longer required. The Intel Extreme Graphics Driver determines the size of the pre-allocated memory needed and will make additional Non-Local Video Memory requests to achieve the amount needed for the display and application requirement. The video memory size in the Intel® 865GV chipset varies and is determined using several factors. The key factors are system resources and system activity. The maximum video memory is up to 64MB SDRAM
參考答案:5.2动态影像记忆技术以下是引自"英特尔®865gv芯片动态影像记忆技术" 证件号码:253144-001:内存分配方式的经营体制, 来自应用和图形存储器系统内存池统一称为统一内存架构(阿马). 动态影像记忆技术(dvmt)是一个增强了阿马构想 其中最佳内存量分配均衡和图形系统性能, 通过直接采购协定(简称非本地视频内存或nlvm)、高效内存利用计划. dvmt确保最有效地利用可用内存. 不分帧缓冲区或内存上浆. 三维共享图形为最高表现. dvmt系统动态响应要求、应用需求,拨出适当金额汇演 纹及缓冲存储器操作系统后已退出. 举例来说,当推出三维应用可能需要更多的缓冲存储器,提高顶点复杂物体 纹理增强记忆或更多的丰富的3D环境. 操作系统看法驱动作为应用集成图形、 其中直接利用协定要求增拨内存三维应用 回到记忆的操作系统(操作系统)当不再需要. 英特尔极端图表司机决定大小预先分配内存和将需要更多的非本地视频内存 请达到所需的展示和应用的要求. 视频内存大小的芯片组英特尔®865gv不一,决心用几个因素. 关键因素是体制和制度资源的活动. 最高达存取的SDRAM视频内存
