文件名称:
Two-Level Segregate Fit
开发工具:
文件大小: 147kb
下载次数: 0
上传时间: 2011-08-25
详细说明： TLSF This web site provides detailed information about the TLSF (Two-Level Segregate Fit) allocator. TLSF is a general purpose dynamic memory allocator specifically designed to meet real-time requirements: Bounded Response Time . The worst-case execution time (WCET) of memory allocation and deallocation has got to be known in advance and be independent of application data. TLSF has a constant cost O(1). Fast. Additionally to a bounded cost, the allocator has to be efficient and fast enough. TLSF executes a maximum of 1 68 processor instructions in a x86 architecture. Depending on the compiler version and optimisation flags, it can be slightly lower or higher. Efficient Memory Use . Traditionally, real-time systems run for long periods of time and some (embedded applications), have strong constraints of memory size. Fragmentation can have a significant impact on such systems. It can increase dramatically, and degrade the system performance. A way to measure this efficiency is the memory fragmentation incurred by the allocator. TLSF has been tested in hundreds of different loads (real-time tasks, general purpose applications, etc.) obtaining an average fragmentation lower than 15 %. The maximum fragmentation measured is lower than 25%. TLSF has been included in several Linux distributions and applications. Although TLSF works rather well in many scenarios, it stands out in applications with hard/soft real-time application which uses explicit memory allocation with high flexibility requirements due to a high variability of the data size or adaptability to new situations. Some examples are: RTOS dynamic memory management Multimedia applications Routers, Switches, ... 3D reconstruction and rendering in video system applications Games ..... ...展开收缩
(系统自动生成,下载前可以参看下载内容)
下载文件列表
相关说明
- 本站资源为会员上传分享交流与学习,如有侵犯您的权益,请联系我们删除.
- 本站是交换下载平台，提供交流渠道，下载内容来自于网络，除下载问题外，其它问题请自行百度。
- 本站已设置防盗链，请勿用迅雷、QQ旋风等多线程下载软件下载资源，下载后用WinRAR最新版进行解压.
- 如果您发现内容无法下载，请稍后再次尝试；或者到消费记录里找到下载记录反馈给我们.
- 下载后发现下载的内容跟说明不相乎，请到消费记录里找到下载记录反馈给我们，经确认后退回积分.
- 如下载前有疑问，可以通过点击"提供者"的名字，查看对方的联系方式，联系对方咨询.
