大型3D场景漫游系统内存管理

在大型3D场景漫游系统中,单个资源(如模型、纹理)所需内存较大且分配和释放频繁,为了防止内存碎片的产生并提高内存分配速度,提出了一种新型内存管理方法.根据程序需求首先划分出一块或多块大的虚拟内存区域,然后基于所划分的内存区域进行内存分配和回收管理.在该管理方法中,对于程序中的小资源,使用内存池;对于大的资源,则使用伙伴系统内存管理方法.实验结果表明,该内存管理方法高效且稳定.

Memory management of large-scale 3D scene roaming system

In the 3D scene roaming system,a resource(model,texture,etc.) requires large memory and swaps between memory and file frequently.In order to prevent the emergence of much memory fragmentation and to improve the speed of memory allocation,a method of memory management is presented.The resources apply for and free the memory from the one or some large virtual memory that be allocated at the time of system running.For allocation of small memory,the system uses the strategy of memory pool.For allocation of larg...